fkie_cve-2024-44996
Vulnerability from fkie_nvd
Published
2024-09-04 20:15
Modified
2024-09-16 12:21
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: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/69139d2919dd4aa9a553c8245e7c63e82613e3fcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EFA932A8-AACF-430D-AFBC-9A93F0749D68",
              "versionEndExcluding": "6.6.48",
              "versionStartIncluding": "6.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D2AFDFD1-D95A-4EB7-843B-5E7659518B67",
              "versionEndExcluding": "6.10.7",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: fix recursive -\u003erecvmsg calls\n\nAfter a vsock socket has been added to a BPF sockmap, its prot-\u003erecvmsg\nhas been replaced with vsock_bpf_recvmsg(). Thus the following\nrecursiion could happen:\n\nvsock_bpf_recvmsg()\n -\u003e __vsock_recvmsg()\n  -\u003e vsock_connectible_recvmsg()\n   -\u003e prot-\u003erecvmsg()\n    -\u003e vsock_bpf_recvmsg() again\n\nWe need to fix it by calling the original -\u003erecvmsg() without any BPF\nsockmap logic in __vsock_recvmsg()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: corregir llamadas recursivas -\u0026gt;recvmsg Despu\u00e9s de que se ha a\u00f1adido un socket vsock a un sockmap BPF, su prot-\u0026gt;recvmsg se ha reemplazado por vsock_bpf_recvmsg(). Por lo tanto, podr\u00eda ocurrir la siguiente recursi\u00f3n: vsock_bpf_recvmsg() -\u0026gt; __vsock_recvmsg() -\u0026gt; vsock_connectible_recvmsg() -\u0026gt; prot-\u0026gt;recvmsg() -\u0026gt; vsock_bpf_recvmsg() de nuevo Necesitamos solucionarlo llamando al -\u0026gt;recvmsg() original sin ninguna l\u00f3gica sockmap BPF en __vsock_recvmsg()."
    }
  ],
  "id": "CVE-2024-44996",
  "lastModified": "2024-09-16T12:21:47.370",
  "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": "2024-09-04T20:15:08.413",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/69139d2919dd4aa9a553c8245e7c63e82613e3fc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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