var-201905-1248
Vulnerability from variot
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Intel Xeon Scalable Processors and so on are products of Intel Corporation of the United States. Intel XeonScalable Processors is a scalable server central processing unit (CPU). IntelXeonProcessorE7v4Family is a XeonE7 series server central processing unit (CPU). IntelXeonProcessorE5v4Family is a XeonE5 series server central processing unit (CPU). An information disclosure vulnerability exists in several Intel products. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. The vulnerability is due to improper memory operations that could expose a side channel on the affected system. A successful exploit could be used to conduct further attacks. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. A third-party patch is also available. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:1169-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1169 Issue date: 2019-05-14 CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 =====================================================================
- Summary:
An update for kernel is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64
- Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
-
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
-
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
-
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
-
aio O_DIRECT writes to non-page-aligned file locations on ext4 can result in the overlapped portion of the page containing zeros (BZ#1686170)
-
Tolerate new s390x crypto hardware for migration (BZ#1695496)
-
Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
- Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
- Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source: kernel-2.6.32-754.14.2.el6.src.rpm
i386: kernel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-devel-2.6.32-754.14.2.el6.i686.rpm kernel-headers-2.6.32-754.14.2.el6.i686.rpm perf-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm kernel-doc-2.6.32-754.14.2.el6.noarch.rpm kernel-firmware-2.6.32-754.14.2.el6.noarch.rpm
x86_64: kernel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm kernel-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-headers-2.6.32-754.14.2.el6.x86_64.rpm perf-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
x86_64: kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: kernel-2.6.32-754.14.2.el6.src.rpm
noarch: kernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm kernel-doc-2.6.32-754.14.2.el6.noarch.rpm kernel-firmware-2.6.32-754.14.2.el6.noarch.rpm
x86_64: kernel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm kernel-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-headers-2.6.32-754.14.2.el6.x86_64.rpm perf-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64: kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: kernel-2.6.32-754.14.2.el6.src.rpm
i386: kernel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-devel-2.6.32-754.14.2.el6.i686.rpm kernel-headers-2.6.32-754.14.2.el6.i686.rpm perf-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm kernel-doc-2.6.32-754.14.2.el6.noarch.rpm kernel-firmware-2.6.32-754.14.2.el6.noarch.rpm
ppc64: kernel-2.6.32-754.14.2.el6.ppc64.rpm kernel-bootwrapper-2.6.32-754.14.2.el6.ppc64.rpm kernel-debug-2.6.32-754.14.2.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm kernel-debug-devel-2.6.32-754.14.2.el6.ppc64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-754.14.2.el6.ppc64.rpm kernel-devel-2.6.32-754.14.2.el6.ppc64.rpm kernel-headers-2.6.32-754.14.2.el6.ppc64.rpm perf-2.6.32-754.14.2.el6.ppc64.rpm perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm
s390x: kernel-2.6.32-754.14.2.el6.s390x.rpm kernel-debug-2.6.32-754.14.2.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.s390x.rpm kernel-debug-devel-2.6.32-754.14.2.el6.s390x.rpm kernel-debuginfo-2.6.32-754.14.2.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-754.14.2.el6.s390x.rpm kernel-devel-2.6.32-754.14.2.el6.s390x.rpm kernel-headers-2.6.32-754.14.2.el6.s390x.rpm kernel-kdump-2.6.32-754.14.2.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-754.14.2.el6.s390x.rpm kernel-kdump-devel-2.6.32-754.14.2.el6.s390x.rpm perf-2.6.32-754.14.2.el6.s390x.rpm perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm
x86_64: kernel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm kernel-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-headers-2.6.32-754.14.2.el6.x86_64.rpm perf-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
i386: kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
ppc64: kernel-debug-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-754.14.2.el6.ppc64.rpm perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm python-perf-2.6.32-754.14.2.el6.ppc64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm
s390x: kernel-debug-debuginfo-2.6.32-754.14.2.el6.s390x.rpm kernel-debuginfo-2.6.32-754.14.2.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-754.14.2.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-754.14.2.el6.s390x.rpm perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm python-perf-2.6.32-754.14.2.el6.s390x.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm
x86_64: kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: kernel-2.6.32-754.14.2.el6.src.rpm
i386: kernel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-devel-2.6.32-754.14.2.el6.i686.rpm kernel-headers-2.6.32-754.14.2.el6.i686.rpm perf-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm kernel-doc-2.6.32-754.14.2.el6.noarch.rpm kernel-firmware-2.6.32-754.14.2.el6.noarch.rpm
x86_64: kernel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm kernel-devel-2.6.32-754.14.2.el6.x86_64.rpm kernel-headers-2.6.32-754.14.2.el6.x86_64.rpm perf-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
i386: kernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm python-perf-2.6.32-754.14.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm
x86_64: kernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm python-perf-2.6.32-754.14.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/mds
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . Relevant releases/architectures:
RHV-M 4.3 - noarch
- Description:
The rhvm-setup-plugins package adds functionality exclusive only to Red Hat Virtualization Manager, and is not available for the upstream ovirt-engine. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material.
Software Description: - intel-microcode: Processor microcode for Intel CPUs
Details:
USN-3977-1 and USN-3977-2 provided mitigations for Microarchitectural Data Sampling (MDS) vulnerabilities in Intel Microcode for a large number of Intel processor families. 7.2) - x86_64
- Description:
The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems. ========================================================================== Ubuntu Security Notice USN-3982-2 May 14, 2019
linux-lts-xenial vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in the Linux kernel. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 for Ubuntu 14.04 LTS.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12130)
Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12127)
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12126)
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2019-11091)
Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)
Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 ESM: linux-image-4.4.0-148-generic 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-generic-lpae 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-lowlatency 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-powerpc-e500mc 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-powerpc-smp 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-powerpc64-emb 4.4.0-148.174~14.04.1 linux-image-4.4.0-148-powerpc64-smp 4.4.0-148.174~14.04.1 linux-image-generic-lpae-lts-xenial 4.4.0.148.130 linux-image-generic-lts-xenial 4.4.0.148.130 linux-image-lowlatency-lts-xenial 4.4.0.148.130 linux-image-powerpc-e500mc-lts-xenial 4.4.0.148.130 linux-image-powerpc-smp-lts-xenial 4.4.0.148.130 linux-image-powerpc64-emb-lts-xenial 4.4.0.148.130 linux-image-powerpc64-smp-lts-xenial 4.4.0.148.130 linux-image-virtual-lts-xenial 4.4.0.148.130
After a standard system update you need to reboot your computer to make all the necessary changes.
Please note that fully mitigating the Microarchitectural Data Sampling (MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091) requires corresponding processor microcode/firmware updates or, in virtual environments, hypervisor updates. It provides mitigations for the MSBDS, MFBDS, MLPDS and MDSUM hardware vulnerabilities.
To fully resolve these vulnerabilities it is also necessary to update the Linux kernel packages as released in DSA 4444.
For the stable distribution (stretch), these problems have been fixed in version 3.20190514.1~deb9u1.
We recommend that you upgrade your intel-microcode packages.
For the detailed security status of intel-microcode please refer to its security tracker page at: https://security-tracker.debian.org/tracker/intel-microcode
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAlzb2WsACgkQEMKTtsN8 TjZ+PBAAqVaw+/6ZsLEwj4aPlI0XrDP1MEWLHSFyOpOluNKaHSfCR1MopjdmSykT 91es+HCLISwbpuhPy8a+rPEZnSwnQczuXJITMVnW0Z9noUvTf/BnN/dAdwTa8Ka8 DkhBnvmc5gOkdcG7il+PaI1byZ5/6S+znqhDiN4VSZg3h1LhJMk9h9kUjQS+W6uC qA4JGdJsqeQShngE8njGetwCaf29+e2OQ3RfuDp+6XgsQln2ZOi7r69Bj5VmH5jB yYzMMp8n0jMKelzqP9HtniL/P/75foDhQrP95k8gFaeRaLTEIb0NNLP1JpiaVKtn +c+1yMN6R7JG86AOlNOq/xUHv3pkuP9i2PBEga/956nQZf9g9/5tc6/K0dgHl4Yx zn1SKQrKdXVqtvYx6boh3cPqoJ99W32GijQHr2N8ezjdmW7SHMGtpnSVO88nDbH4 JVdxVhtY4JCsDJxYIwb6T4p3TSGIzN0T7y5/YqItqObmblLpg8jASWNkrepH3jqY a9swwMelQTsop5LFTwgYbTznXSEE+AorFTc+hOvScR4ZSr8kPVK/nf/m+h5Zj68B Lx/nnOQZFYySrNBKMfMLCXmrmMWP3ZavMiiEJL4GbWfNFAEJH4P+2UwsjwyEVW3h NrRAdm0MqsY86tHBWmDGhNMYjShKm/vG5mMpWg5r3AG3IhG1x/U= =PWZK -----END PGP SIGNATURE----- . These CVEs are security vulnerabilities caused by flaws in the design of speculative execution hardware in the computer's CPU.
Details on the vulnerability and our response can be found here: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/MDS
Due to the high complexity of the fixes and the need for a corresponding CPU microcode update for a complete fix, we are unable to livepatch these CVEs. Please plan to reboot into an updated kernel as soon as possible.
Users running Ubuntu 16.04 LTS or 14.04 LTS should upgrade to kernel version 4.4.0-148.174 or later.
References: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091
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A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Intel Xeon Scalable Processors and so on are products of Intel Corporation of the United States. Intel XeonScalable Processors is a scalable server central processing unit (CPU). IntelXeonProcessorE7v4Family is a XeonE7 series server central processing unit (CPU). IntelXeonProcessorE5v4Family is a XeonE5 series server central processing unit (CPU). An information disclosure vulnerability exists in several Intel products. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. \nThe vulnerability is due to improper memory operations that could expose a side channel on the affected system. A successful exploit could be used to conduct further attacks. \nProof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. A third-party patch is also available. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Important: kernel security and bug fix update\nAdvisory ID: RHSA-2019:1169-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2019:1169\nIssue date: 2019-05-14\nCVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 \n CVE-2019-11091 \n=====================================================================\n\n1. Summary:\n\nAn update for kernel is now available for Red Hat Enterprise Linux 6. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64\nRed Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64\nRed Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64\nRed Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64\nRed Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64\n\n3. Description:\n\nThe kernel packages contain the Linux kernel, the core of any Linux\noperating system. \n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism\nused by modern CPUs when a cache-miss is made on L1 CPU cache. If an\nattacker can generate a load operation that would create a page fault, the\nexecution will continue speculatively with incorrect data from the fill\nbuffer while the data is fetched from higher level caches. This response\ntime can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations\nto improve the performance of writing data back to CPU caches. The write\noperation is split into STA (STore Address) and STD (STore Data)\nsub-operations. These sub-operations allow the processor to hand-off\naddress generation logic into these sub-operations for optimized writes. \nBoth of these sub-operations write to a shared distributed processor\nstructure called the \u0027processor store buffer\u0027. As a result, an unprivileged\nattacker could use this flaw to read private data resident within the CPU\u0027s\nprocessor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations\nfrom memory or IO. During a load operation, the load port receives data\nfrom the memory or IO subsystem and then provides the data to the CPU\nregisters and operations in the CPU\u2019s pipelines. Stale load operations\nresults are stored in the \u0027load port\u0027 table until overwritten by newer\noperations. Certain load-port operations triggered by an attacker can be\nused to reveal data about previous stale requests leaking data back to the\nattacker via a timing side-channel. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\nBug Fix(es):\n\n* aio O_DIRECT writes to non-page-aligned file locations on ext4 can result\nin the overlapped portion of the page containing zeros (BZ#1686170)\n\n* Tolerate new s390x crypto hardware for migration (BZ#1695496)\n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)\n1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)\n1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)\n\n6. Package List:\n\nRed Hat Enterprise Linux Desktop (v. 6):\n\nSource:\nkernel-2.6.32-754.14.2.el6.src.rpm\n\ni386:\nkernel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-headers-2.6.32-754.14.2.el6.i686.rpm\nperf-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nnoarch:\nkernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm\nkernel-doc-2.6.32-754.14.2.el6.noarch.rpm\nkernel-firmware-2.6.32-754.14.2.el6.noarch.rpm\n\nx86_64:\nkernel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-headers-2.6.32-754.14.2.el6.x86_64.rpm\nperf-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux Desktop Optional (v. 6):\n\ni386:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nx86_64:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux HPC Node (v. 6):\n\nSource:\nkernel-2.6.32-754.14.2.el6.src.rpm\n\nnoarch:\nkernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm\nkernel-doc-2.6.32-754.14.2.el6.noarch.rpm\nkernel-firmware-2.6.32-754.14.2.el6.noarch.rpm\n\nx86_64:\nkernel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-headers-2.6.32-754.14.2.el6.x86_64.rpm\nperf-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux HPC Node Optional (v. 6):\n\nx86_64:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 6):\n\nSource:\nkernel-2.6.32-754.14.2.el6.src.rpm\n\ni386:\nkernel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-headers-2.6.32-754.14.2.el6.i686.rpm\nperf-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nnoarch:\nkernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm\nkernel-doc-2.6.32-754.14.2.el6.noarch.rpm\nkernel-firmware-2.6.32-754.14.2.el6.noarch.rpm\n\nppc64:\nkernel-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-bootwrapper-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debug-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debuginfo-common-ppc64-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-devel-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-headers-2.6.32-754.14.2.el6.ppc64.rpm\nperf-2.6.32-754.14.2.el6.ppc64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\n\ns390x:\nkernel-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debug-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debuginfo-common-s390x-2.6.32-754.14.2.el6.s390x.rpm\nkernel-devel-2.6.32-754.14.2.el6.s390x.rpm\nkernel-headers-2.6.32-754.14.2.el6.s390x.rpm\nkernel-kdump-2.6.32-754.14.2.el6.s390x.rpm\nkernel-kdump-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nkernel-kdump-devel-2.6.32-754.14.2.el6.s390x.rpm\nperf-2.6.32-754.14.2.el6.s390x.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\n\nx86_64:\nkernel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-headers-2.6.32-754.14.2.el6.x86_64.rpm\nperf-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 6):\n\ni386:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nppc64:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\nkernel-debuginfo-common-ppc64-2.6.32-754.14.2.el6.ppc64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\npython-perf-2.6.32-754.14.2.el6.ppc64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.ppc64.rpm\n\ns390x:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nkernel-debuginfo-common-s390x-2.6.32-754.14.2.el6.s390x.rpm\nkernel-kdump-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\npython-perf-2.6.32-754.14.2.el6.s390x.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.s390x.rpm\n\nx86_64:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 6):\n\nSource:\nkernel-2.6.32-754.14.2.el6.src.rpm\n\ni386:\nkernel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-headers-2.6.32-754.14.2.el6.i686.rpm\nperf-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nnoarch:\nkernel-abi-whitelists-2.6.32-754.14.2.el6.noarch.rpm\nkernel-doc-2.6.32-754.14.2.el6.noarch.rpm\nkernel-firmware-2.6.32-754.14.2.el6.noarch.rpm\n\nx86_64:\nkernel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.i686.rpm\nkernel-debug-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-devel-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-headers-2.6.32-754.14.2.el6.x86_64.rpm\nperf-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 6):\n\ni386:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.i686.rpm\nkernel-debuginfo-common-i686-2.6.32-754.14.2.el6.i686.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\npython-perf-2.6.32-754.14.2.el6.i686.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.i686.rpm\n\nx86_64:\nkernel-debug-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\nkernel-debuginfo-common-x86_64-2.6.32-754.14.2.el6.x86_64.rpm\nperf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-2.6.32-754.14.2.el6.x86_64.rpm\npython-perf-debuginfo-2.6.32-754.14.2.el6.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2018-12126\nhttps://access.redhat.com/security/cve/CVE-2018-12127\nhttps://access.redhat.com/security/cve/CVE-2018-12130\nhttps://access.redhat.com/security/cve/CVE-2019-11091\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://access.redhat.com/security/vulnerabilities/mds\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2019 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nrTvFzC19U40=\n=FB27\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. Relevant releases/architectures:\n\nRHV-M 4.3 - noarch\n\n3. Description:\n\nThe rhvm-setup-plugins package adds functionality exclusive only to Red Hat\nVirtualization Manager, and is not available for the upstream ovirt-engine. \nIt includes the configuration of the Red Hat Support plugin, copying\ndownstream-only artifacts to the ISO domain, and links to the knowledgebase\nand other support material. \n\nSoftware Description:\n- intel-microcode: Processor microcode for Intel CPUs\n\nDetails:\n\nUSN-3977-1 and USN-3977-2 provided mitigations for Microarchitectural\nData Sampling (MDS) vulnerabilities in Intel Microcode for a\nlarge number of Intel processor families. 7.2) - x86_64\n\n3. Description:\n\nThe libvirt library contains a C API for managing and interacting with the\nvirtualization capabilities of Linux and other operating systems. In\naddition, libvirt provides tools for remote management of virtualized\nsystems. ==========================================================================\nUbuntu Security Notice USN-3982-2\nMay 14, 2019\n\nlinux-lts-xenial vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 14.04 ESM\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. This update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 16.04 for Ubuntu\n14.04 LTS. \n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan\nHorea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa\nMilburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,\nCristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss\ndiscovered that memory previously stored in microarchitectural fill buffers\nof an Intel CPU core may be exposed to a malicious process that is\nexecuting on the same CPU core. (CVE-2018-12130)\n\nBrandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan\nvan Schaik, Alyssa Milburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh\nRazavi, Herbert Bos, and Cristiano Giuffrida discovered that memory\npreviously stored in microarchitectural load ports of an Intel CPU core may\nbe exposed to a malicious process that is executing on the same CPU core. \n(CVE-2018-12127)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel\nMoghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel\nGruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory\npreviously stored in microarchitectural store buffers of an Intel CPU core\nmay be exposed to a malicious process that is executing on the same CPU\ncore. \n(CVE-2018-12126)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur,\nMoritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa\nMilburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and\nCristiano Giuffrida discovered that uncacheable memory previously stored in\nmicroarchitectural buffers of an Intel CPU core may be exposed to a\nmalicious process that is executing on the same CPU core. (CVE-2019-11091)\n\nMatteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups\nsubsystem of the Linux kernel did not properly account for SCTP socket\nbuffers. A local attacker could use this to cause a denial of service\n(system crash). (CVE-2019-3874)\n\nAlex Williamson discovered that the vfio subsystem of the Linux kernel did\nnot properly limit DMA mappings. A local attacker could use this to cause a\ndenial of service (memory exhaustion). (CVE-2019-3882)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 14.04 ESM:\n linux-image-4.4.0-148-generic 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-generic-lpae 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-lowlatency 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-powerpc-e500mc 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-powerpc-smp 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-powerpc64-emb 4.4.0-148.174~14.04.1\n linux-image-4.4.0-148-powerpc64-smp 4.4.0-148.174~14.04.1\n linux-image-generic-lpae-lts-xenial 4.4.0.148.130\n linux-image-generic-lts-xenial 4.4.0.148.130\n linux-image-lowlatency-lts-xenial 4.4.0.148.130\n linux-image-powerpc-e500mc-lts-xenial 4.4.0.148.130\n linux-image-powerpc-smp-lts-xenial 4.4.0.148.130\n linux-image-powerpc64-emb-lts-xenial 4.4.0.148.130\n linux-image-powerpc64-smp-lts-xenial 4.4.0.148.130\n linux-image-virtual-lts-xenial 4.4.0.148.130\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nPlease note that fully mitigating the Microarchitectural Data Sampling\n(MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and\nCVE-2019-11091) requires corresponding processor microcode/firmware\nupdates or, in virtual environments, hypervisor updates. It\nprovides mitigations for the MSBDS, MFBDS, MLPDS and MDSUM hardware\nvulnerabilities. \n\nTo fully resolve these vulnerabilities it is also necessary to update\nthe Linux kernel packages as released in DSA 4444. \n\nFor the stable distribution (stretch), these problems have been fixed in\nversion 3.20190514.1~deb9u1. \n\nWe recommend that you upgrade your intel-microcode packages. \n\nFor the detailed security status of intel-microcode please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/intel-microcode\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\nNrRAdm0MqsY86tHBWmDGhNMYjShKm/vG5mMpWg5r3AG3IhG1x/U=\n=PWZK\n-----END PGP SIGNATURE-----\n. These CVEs are security vulnerabilities caused by flaws in the\ndesign of speculative execution hardware in the computer\u0027s CPU. \n\nDetails on the vulnerability and our response can be found here:\nhttps://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/MDS\n\nDue to the high complexity of the fixes and the need for a corresponding\nCPU microcode update for a complete fix, we are unable to livepatch these\nCVEs. Please plan to reboot into an updated kernel as soon as possible. \n\nUsers running Ubuntu 16.04 LTS or 14.04 LTS should upgrade to kernel version \n4.4.0-148.174 or later. \n\nReferences:\n CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091\n\n\n\n-- \nubuntu-security-announce mailing list\nubuntu-security-announce@lists.ubuntu.com\nModify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce\n", "sources": [ { "db": "NVD", "id": "CVE-2019-11091" }, { "db": "CNVD", "id": "CNVD-2019-22234" }, { "db": "VULHUB", "id": "VHN-142703" }, { "db": "VULMON", "id": "CVE-2019-11091" }, { "db": "PACKETSTORM", "id": "152952" }, { "db": "PACKETSTORM", "id": "152879" }, { "db": "PACKETSTORM", "id": "152937" }, { "db": "PACKETSTORM", "id": "152929" }, { "db": "PACKETSTORM", "id": "153389" }, { "db": "PACKETSTORM", "id": "152903" }, { "db": "PACKETSTORM", "id": "152935" }, { "db": "PACKETSTORM", "id": "152942" }, { "db": "PACKETSTORM", "id": 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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.