2023-11-07 21:03:21 +00:00

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{
"id": "CVE-2021-36087",
"sourceIdentifier": "cve@mitre.org",
"published": "2021-07-01T03:15:08.817",
"lastModified": "2023-11-07T03:36:42.693",
"vulnStatus": "Modified",
"descriptions": [
{
"lang": "en",
"value": "The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block."
},
{
"lang": "es",
"value": "El compilador CIL en SELinux 3.2 tiene una sobrelectura del b\u00fafer basada en el mont\u00f3n en ebitmap_match_any (llamado indirectamente desde cil_check_neverallow). Esto ocurre porque a veces no se comprueban las declaraciones no v\u00e1lidas en un bloque opcional"
}
],
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{
"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:L",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW",
"baseScore": 3.3,
"baseSeverity": "LOW"
},
"exploitabilityScore": 1.8,
"impactScore": 1.4
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
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"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"accessVector": "LOCAL",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1
},
"baseSeverity": "LOW",
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
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"references": [
{
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32675",
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
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]
},
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"url": "https://github.com/SELinuxProject/selinux/commit/340f0eb7f3673e8aacaf0a96cbfcd4d12a405521",
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"source": "cve@mitre.org",
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},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/",
"source": "cve@mitre.org"
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"url": "https://lore.kernel.org/selinux/CAEN2sdqJKHvDzPnxS-J8grU8fSf32DDtx=kyh84OsCq_Vm+yaQ%40mail.gmail.com/T/",
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}