2024-07-14 02:06:08 +00:00

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{
"id": "CVE-2024-26849",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-04-17T11:15:08.377",
"lastModified": "2024-04-17T12:48:07.510",
"vulnStatus": "Awaiting Analysis",
"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."
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/0ac219c4c3ab253f3981f346903458d20bacab32",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7a9d14c63b35f89563c5ecbadf918ad64979712d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9a0d18853c280f6a0ee99f91619f2442a17a323a",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a2ab028151841cd833cb53eb99427e0cc990112d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}