mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
synced 2025-05-28 17:21:36 +00:00
103 lines
4.4 KiB
JSON
103 lines
4.4 KiB
JSON
{
|
|
"id": "CVE-2022-48929",
|
|
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"published": "2024-08-22T04:15:15.773",
|
|
"lastModified": "2024-08-23T02:00:22.653",
|
|
"vulnStatus": "Analyzed",
|
|
"cveTags": [],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix crash due to out of bounds access into reg2btf_ids.\n\nWhen commit e6ac2450d6de (\"bpf: Support bpf program calling kernel function\") added\nkfunc support, it defined reg2btf_ids as a cheap way to translate the verifier\nreg type to the appropriate btf_vmlinux BTF ID, however\ncommit c25b2ae13603 (\"bpf: Replace PTR_TO_XXX_OR_NULL with PTR_TO_XXX | PTR_MAYBE_NULL\")\nmoved the __BPF_REG_TYPE_MAX from the last member of bpf_reg_type enum to after\nthe base register types, and defined other variants using type flag\ncomposition. However, now, the direct usage of reg->type to index into\nreg2btf_ids may no longer fall into __BPF_REG_TYPE_MAX range, and hence lead to\nout of bounds access and kernel crash on dereference of bad pointer."
|
|
},
|
|
{
|
|
"lang": "es",
|
|
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: Se corrigi\u00f3 el bloqueo debido al acceso fuera de los l\u00edmites a reg2btf_ids. Cuando el commit e6ac2450d6de (\"bpf: admite la funci\u00f3n del kernel que llama al programa bpf\") agreg\u00f3 soporte para kfunc, defini\u00f3 reg2btf_ids como una forma econ\u00f3mica de traducir el tipo de registro del verificador al ID de BTF btf_vmlinux apropiado; sin embargo, commit c25b2ae13603 (\"bpf: reemplace PTR_TO_XXX_OR_NULL con PTR_TO_XXX | PTR_MAYBE_NULL\") movi\u00f3 __BPF_REG_TYPE_MAX del \u00faltimo miembro de la enumeraci\u00f3n bpf_reg_type a despu\u00e9s de los tipos de registro base y defini\u00f3 otras variantes utilizando la composici\u00f3n de indicadores de tipo. Sin embargo, ahora, el uso directo de reg->type para indexar en reg2btf_ids ya no puede caer en el rango __BPF_REG_TYPE_MAX y, por lo tanto, provocar un acceso fuera de los l\u00edmites y un bloqueo del kernel al desreferenciar un puntero incorrecto."
|
|
}
|
|
],
|
|
"metrics": {
|
|
"cvssMetricV31": [
|
|
{
|
|
"source": "nvd@nist.gov",
|
|
"type": "Primary",
|
|
"cvssData": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
|
|
"baseScore": 5.5,
|
|
"baseSeverity": "MEDIUM",
|
|
"attackVector": "LOCAL",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "LOW",
|
|
"userInteraction": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "NONE",
|
|
"availabilityImpact": "HIGH"
|
|
},
|
|
"exploitabilityScore": 1.8,
|
|
"impactScore": 3.6
|
|
}
|
|
]
|
|
},
|
|
"weaknesses": [
|
|
{
|
|
"source": "nvd@nist.gov",
|
|
"type": "Primary",
|
|
"description": [
|
|
{
|
|
"lang": "en",
|
|
"value": "CWE-125"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.15.15",
|
|
"versionEndExcluding": "5.15.37",
|
|
"matchCriteriaId": "BEB734DF-768A-48DC-8983-4ED1A0CA1A3D"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16.1",
|
|
"versionEndExcluding": "5.16.12",
|
|
"matchCriteriaId": "4368C931-8568-4F36-A74D-8E41781257A6"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/45ce4b4f9009102cd9f581196d480a59208690c1",
|
|
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"tags": [
|
|
"Patch"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8c39925e98d498b9531343066ef82ae39e41adae",
|
|
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"tags": [
|
|
"Patch"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f0ce1bc9e0235dd7412240be493d7ea65ed9eadc",
|
|
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"tags": [
|
|
"Patch"
|
|
]
|
|
}
|
|
]
|
|
} |