variot - var-201908-0266

var-201908-0266

Vulnerability from variot

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory. Multiple HTTP/2 implementations are vulnerable to a variety of denial-of-service (DoS) attacks. Apple SwiftNIO Used in products such as HTTP/2 Contains a resource exhaustion vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. HTTP/2 is the second version of the hypertext transfer protocol, which is mainly used to ensure the communication between the client and the server. A resource management error vulnerability exists in HTTP/2. A vulnerability in the HTTP/2 implementation of Nginx could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on a targeted system. The vulnerability is due to improper parsing of zero length headers by the affected software that could lead to excessive CPU usage. An attacker could exploit this vulnerability by sending a request that submits malicious input to an affected system. A successful exploit could result in a DoS condition on the targeted system. nginx.org has confirmed the vulnerability and released software updates. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied. Description:

This release adds the new Apache HTTP Server 2.4.37 packages that are part of the JBoss Core Services offering.

This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.29 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release. After installing the updated packages, the httpd daemon will be restarted automatically. Description:

AMQ Broker is a high-performance messaging implementation based on ActiveMQ Artemis. It uses an asynchronous journal for fast message persistence, and supports multiple languages, protocols, and platforms. Solution:

Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.

The References section of this erratum contains a download link (you must log in to download the update). -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0

SwiftNIO HTTP/2 1.5.0 is now available and addresses the following:

SwiftNIO HTTP/2 Available for: SwiftNIO HTTP/2 1.0.0 through 1.4.0 on macOS Sierra 10.12 and later and Ubuntu 14.04 and later Impact: A HTTP/2 server may consume unbounded amounts of memory when receiving certain traffic patterns and eventually suffer resource exhaustion Description: This issue was addressed with improved buffer size management. CVE-2019-9512: Jonathan Looney of Netflix CVE-2019-9514: Jonathan Looney of Netflix CVE-2019-9515: Jonathan Looney of Netflix CVE-2019-9516: Jonathan Looney of Netflix

SwiftNIO HTTP/2 Available for: SwiftNIO HTTP/2 1.0.0 through 1.4.0 on macOS Sierra 10.12 and later and Ubuntu 14.04 and later Impact: A HTTP/2 server may consume excessive CPU resources when receiving certain traffic patterns Description: This issue was addressed with improved input validation. CVE-2019-9518: Piotr Sikora of Google, Envoy Security Team

Installation note:

SwiftNIO HTTP/2 1.5.0 may be obtained via Swift Package Manager.

Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 and https://github.com/apple/swift-nio-http2/releases/tag/1.5.0. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

===================================================================== Red Hat Security Advisory

Synopsis: Important: rh-nodejs10-nodejs security update Advisory ID: RHSA-2019:2939-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2019:2939 Issue date: 2019-09-30 CVE Names: CVE-2019-9511 CVE-2019-9512 CVE-2019-9513 CVE-2019-9514 CVE-2019-9515 CVE-2019-9516 CVE-2019-9517 CVE-2019-9518 =====================================================================

Summary:

An update for rh-nodejs10-nodejs is now available for Red Hat Software Collections.

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 Software Collections for Red Hat Enterprise Linux Server (v. 7) - aarch64, noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) - noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Description:

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

The following packages have been upgraded to a later upstream version: rh-nodejs10-nodejs (10.16.3).

Security Fix(es):

HTTP/2: large amount of data requests leads to denial of service (CVE-2019-9511)
HTTP/2: flood using PING frames results in unbounded memory growth (CVE-2019-9512)
HTTP/2: flood using PRIORITY frames results in excessive resource consumption (CVE-2019-9513)
HTTP/2: flood using HEADERS frames results in unbounded memory growth (CVE-2019-9514)
HTTP/2: flood using SETTINGS frames results in unbounded memory growth (CVE-2019-9515)
HTTP/2: 0-length headers lead to denial of service (CVE-2019-9516)
HTTP/2: request for large response leads to denial of service (CVE-2019-9517)
HTTP/2: flood using empty frames results in excessive resource consumption (CVE-2019-9518)

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.

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

Bugs fixed (https://bugzilla.redhat.com/):

1735645 - CVE-2019-9512 HTTP/2: flood using PING frames results in unbounded memory growth 1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames results in excessive resource consumption 1735744 - CVE-2019-9514 HTTP/2: flood using HEADERS frames results in unbounded memory growth 1735745 - CVE-2019-9515 HTTP/2: flood using SETTINGS frames results in unbounded memory growth 1735749 - CVE-2019-9518 HTTP/2: flood using empty frames results in excessive resource consumption 1741860 - CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service 1741864 - CVE-2019-9516 HTTP/2: 0-length headers lead to denial of service 1741868 - CVE-2019-9517 HTTP/2: request for large response leads to denial of service

Package List:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):