github - ghsa-jv48-qx8c-4x4f

ghsa-jv48-qx8c-4x4f

Vulnerability from github

Published

2024-07-30 09:32

Modified

2024-12-11 18:30

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:

virtio-pci: Check if is_avq is NULL

[bug] In the virtio_pci_common.c function vp_del_vqs, vp_dev->is_avq is involved to determine whether it is admin virtqueue, but this function vp_dev->is_avq may be empty. For installations, virtio_pci_legacy does not assign a value to vp_dev->is_avq.

[fix] Check whether it is vp_dev->is_avq before use.

[test] Test with virsh Attach device Before this patch, the following command would crash the guest system

After applying the patch, everything seems to be working fine.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42134"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-30T08:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-pci: Check if is_avq is NULL\n\n[bug]\nIn the virtio_pci_common.c function vp_del_vqs, vp_dev-\u003eis_avq is involved\nto determine whether it is admin virtqueue, but this function vp_dev-\u003eis_avq\n may be empty. For installations, virtio_pci_legacy does not assign a value\n to vp_dev-\u003eis_avq.\n\n[fix]\nCheck whether it is vp_dev-\u003eis_avq before use.\n\n[test]\nTest with virsh Attach device\nBefore this patch, the following command would crash the guest system\n\nAfter applying the patch, everything seems to be working fine.",
  "id": "GHSA-jv48-qx8c-4x4f",
  "modified": "2024-12-11T18:30:36Z",
  "published": "2024-07-30T09:32:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42134"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498"
    }
  ],
  "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-2024-42134

Vulnerability from cvelistv5

Published

2024-07-30 07:46

Modified

2024-11-05 09:38

Severity ?

Summary

virtio-pci: Check if is_avq is NULL

References

▼	URL	Tags
	https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106
	https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498

Impacted products

Vendor

Product

Version

▼

Linux

Version: 1da177e4c3f4
Version: 1da177e4c3f4

Linux

Show details on NVD website

JSON

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    "dateReserved": "2024-07-29T15:50:41.187Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

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.

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