github - ghsa-p6j3-p28j-4x3h

ghsa-p6j3-p28j-4x3h

Vulnerability from github

Published

2024-08-17 12:30

Modified

2024-09-03 18:31

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

In the Linux kernel, the following vulnerability has been resolved:

kvm: s390: Reject memory region operations for ucontrol VMs

This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP.

Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2.

[frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]

Show details on source website

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-43819"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-17T10:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nkvm: s390: Reject memory region operations for ucontrol VMs\n\nThis change rejects the KVM_SET_USER_MEMORY_REGION and\nKVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM.\nThis is necessary since ucontrol VMs have kvm-\u003earch.gmap set to 0 and\nwould thus result in a null pointer dereference further in.\nMemory management needs to be performed in userspace and using the\nioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP.\n\nAlso improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION\nand KVM_SET_USER_MEMORY_REGION2.\n\n[frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]",
  "id": "GHSA-p6j3-p28j-4x3h",
  "modified": "2024-09-03T18:31:31Z",
  "published": "2024-08-17T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43819"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-43819

Vulnerability from cvelistv5

Published

2024-08-17 09:21

Modified

2024-12-19 09:16

Severity ?

Summary

kvm: s390: Reject memory region operations for ucontrol VMs

References

▼	URL	Tags
	https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
	https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-43819",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:09:06.730085Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:25.193Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "Documentation/virt/kvm/api.rst",
            "arch/s390/kvm/kvm-s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "49c9945c054df4c22008e2bf87ca74d3e2507aa6",
              "status": "affected",
              "version": "27e0393f15fc8bc855c6a888387ff5ffd2181089",
              "versionType": "git"
            },
            {
              "lessThan": "7816e58967d0e6cadce05c8540b47ed027dc2499",
              "status": "affected",
              "version": "27e0393f15fc8bc855c6a888387ff5ffd2181089",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "Documentation/virt/kvm/api.rst",
            "arch/s390/kvm/kvm-s390.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.4"
            },
            {
              "lessThan": "3.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkvm: s390: Reject memory region operations for ucontrol VMs\n\nThis change rejects the KVM_SET_USER_MEMORY_REGION and\nKVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM.\nThis is necessary since ucontrol VMs have kvm-\u003earch.gmap set to 0 and\nwould thus result in a null pointer dereference further in.\nMemory management needs to be performed in userspace and using the\nioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP.\n\nAlso improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION\nand KVM_SET_USER_MEMORY_REGION2.\n\n[frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:16:28.899Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6"
        },
        {
          "url": "https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499"
        }
      ],
      "title": "kvm: s390: Reject memory region operations for ucontrol VMs",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-43819",
    "datePublished": "2024-08-17T09:21:40.994Z",
    "dateReserved": "2024-08-17T09:11:59.271Z",
    "dateUpdated": "2024-12-19T09:16:28.899Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Log in or create an account to share your comment.

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

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.