fkie_cve-2024-26849
Vulnerability from fkie_nvd
Published
2024-04-17 11:15
Modified
2025-02-03 16:18
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: netlink: add nla be16/32 types to minlen array BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline] BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline] BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline] BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [inline] nla_validate_int_range lib/nlattr.c:336 [inline] validate_nla lib/nlattr.c:575 [inline] ... The message in question matches this policy: [NFTA_TARGET_REV] = NLA_POLICY_MAX(NLA_BE32, 255), but because NLA_BE32 size in minlen array is 0, the validation code will read past the malformed (too small) attribute. Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing: those likely should be added too.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ac219c4c3ab253f3981f346903458d20bacab32Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a9d14c63b35f89563c5ecbadf918ad64979712dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a0d18853c280f6a0ee99f91619f2442a17a323aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2ab028151841cd833cb53eb99427e0cc990112dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0ac219c4c3ab253f3981f346903458d20bacab32Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7a9d14c63b35f89563c5ecbadf918ad64979712dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9a0d18853c280f6a0ee99f91619f2442a17a323aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a2ab028151841cd833cb53eb99427e0cc990112dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: add nla be16/32 types to minlen array\n\nBUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline]\nBUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline]\nBUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline]\nBUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631\n nla_validate_range_unsigned lib/nlattr.c:222 [inline]\n nla_validate_int_range lib/nlattr.c:336 [inline]\n validate_nla lib/nlattr.c:575 [inline]\n...\n\nThe message in question matches this policy:\n\n [NFTA_TARGET_REV]       = NLA_POLICY_MAX(NLA_BE32, 255),\n\nbut because NLA_BE32 size in minlen array is 0, the validation\ncode will read past the malformed (too small) attribute.\n\nNote: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing:\nthose likely should be added too."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netlink: agregue tipos nla be16/32 a la matriz minlen ERROR: KMSAN: valor uninit en nla_validate_range_unsigned lib/nlattr.c:222 [en l\u00ednea] ERROR: KMSAN: valor uninit en nla_validate_int_range lib/nlattr.c:336 [en l\u00ednea] ERROR: KMSAN: valor uninit en validar_nla lib/nlattr.c:575 [en l\u00ednea] ERROR: KMSAN: valor uninit en __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [en l\u00ednea] nla_validate_int_range lib/nlattr.c:336 [en l\u00ednea] validar_nla lib/nlattr.c:575 [en l\u00ednea] ... El mensaje en cuesti\u00f3n coincide con esta pol\u00edtica: [NFTA_TARGET_REV] = NLA_POLICY_MAX( NLA_BE32, 255), pero debido a que el tama\u00f1o de NLA_BE32 en la matriz minlen es 0, el c\u00f3digo de validaci\u00f3n leer\u00e1 m\u00e1s all\u00e1 del atributo con formato incorrecto (demasiado peque\u00f1o). Nota: Tambi\u00e9n faltan otros atributos, por ejemplo, BITFIELD32, SINT, UINT...: probablemente tambi\u00e9n deber\u00edan agregarse."
    }
  ],
  "id": "CVE-2024-26849",
  "lastModified": "2025-02-03T16:18:03.157",
  "metrics": {
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      {
        "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": "2024-04-17T11:15:08.377",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-908"
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      "source": "nvd@nist.gov",
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}


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