2024-12-08 03:06:42 +00:00

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{
"id": "CVE-2024-36953",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-05-30T16:15:18.233",
"lastModified": "2024-11-21T09:22:53.767",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()\n\nvgic_v2_parse_attr() is responsible for finding the vCPU that matches\nthe user-provided CPUID, which (of course) may not be valid. If the ID\nis invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled\ngracefully.\n\nSimilar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id()\nactually returns something and fail the ioctl if not."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: KVM: arm64: vgic-v2: Verifique vCPU que no sea NULL en vgic_v2_parse_attr() vgic_v2_parse_attr() es responsable de encontrar la vCPU que coincida con el CPUID proporcionado por el usuario, que (de curso) puede no ser v\u00e1lido. Si el ID no es v\u00e1lido, kvm_get_vcpu_by_id() devuelve NULL, que no se maneja correctamente. De manera similar al flujo de uaccess de GICv3, verifique que kvm_get_vcpu_by_id() realmente devuelva algo y falle el ioctl si no."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 0.8,
"impactScore": 3.6
}
]
},
"references": [
{
"url": "https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}