fkie_cve-2024-42134
Vulnerability from fkie_nvd
Published
2024-07-30 08:15
Modified
2024-12-11 17:19
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498Patch
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EDD11F94-D8F3-477D-931C-7806D6E5D6D3",
              "versionEndExcluding": "6.9.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: virtio-pci: compruebe si is_avq es NULL [error] En la funci\u00f3n virtio_pci_common.c vp_del_vqs, vp_dev-\u0026gt;is_avq participa para determinar si es admin virtqueue, pero esta funci\u00f3n vp_dev -\u0026gt;is_avq puede estar vac\u00edo. Para instalaciones, virtio_pci_legacy no asigna un valor a vp_dev-\u0026gt;is_avq. [arreglo] Verifique si es vp_dev-\u0026gt;is_avq antes de usarlo. [prueba] Prueba con virsh Adjuntar dispositivo Antes de este parche, el siguiente comando bloquear\u00eda el sistema invitado. Despu\u00e9s de aplicar el parche, todo parece estar funcionando bien."
    }
  ],
  "id": "CVE-2024-42134",
  "lastModified": "2024-12-11T17:19:26.307",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-30T08:15:05.360",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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