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vuln-cve/data/2022/49xxx/CVE-2022-49563.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-49563",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-02-26T02:08:31.591Z",
"datePublished": "2025-02-26T02:23:10.252Z",
"dateUpdated": "2026-08-05T08:55:47.255Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T08:55:47.255Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - add param check for RSA\n\nReject requests with a source buffer that is bigger than the size of the\nkey. This is to prevent a possible integer underflow that might happen\nwhen copying the source scatterlist into a linear buffer."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable qat-rsa encrypt/decrypt paths are reached through the local kernel crypto API (KEYCTL_PKEY_ENCRYPT/DECRYPT selecting \"rsa\"/qat-rsa). This is not reachable via network packet processing.\nAC:L - The underflow is deterministic once an RSA request is issued with src_len greater than key_sz; the attacker controls both the length and the contents written out of bounds via scatterwalk_map_and_copy.\nPR:L - Unprivileged local users can create asymmetric keys and invoke KEYCTL_PKEY_* operations; when Intel QAT is present, qat-rsa registers as \"rsa\" at priority 1000 and is preferred over software RSA.\nUI:N - Exploitation requires only local syscalls to load an RSA key and submit an encrypt/decrypt request; no victim interaction is needed.\nS:U - This is standard kernel heap memory corruption within the same privilege boundary, not a VM/IOMMU escape or other cross-authority impact.\nC:H - The integer underflow produces a heap out-of-bounds write of attacker-controlled length and content, which can be leveraged for arbitrary kernel memory read primitives.\nI:H - Attacker-controlled heap overflow in the QAT RSA request path can corrupt adjacent kernel objects and enable arbitrary write or control-flow hijacking.\nA:H - The same heap corruption can reliably cause kernel oops/panic or otherwise deny service even without a full privilege-escalation exploit."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/crypto/qat/qat_common/qat_asym_algs.c"
],
"versions": [
{
"version": "a990532023b903b10cf14736241cdd138e4bc92c",
"lessThan": "4d6d2adce08788b7667a6e58002682ea1bbf6a79",
"status": "affected",
"versionType": "git"
},
{
"version": "a990532023b903b10cf14736241cdd138e4bc92c",
"lessThan": "f993321e50ba7a8ba4f5b19939e1772a921a1c42",
"status": "affected",
"versionType": "git"
},
{
"version": "a990532023b903b10cf14736241cdd138e4bc92c",
"lessThan": "9714061423b8b24b8afb31b8eb4df977c63f19c4",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/crypto/qat/qat_common/qat_asym_algs.c"
],
"versions": [
{
"version": "4.3",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.3",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.58",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.18.15",
"lessThanOrEqual": "5.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.19",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.3",
"versionEndExcluding": "5.15.58"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.3",
"versionEndExcluding": "5.18.15"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.3",
"versionEndExcluding": "5.19"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/4d6d2adce08788b7667a6e58002682ea1bbf6a79"
},
{
"url": "https://git.kernel.org/stable/c/f993321e50ba7a8ba4f5b19939e1772a921a1c42"
},
{
"url": "https://git.kernel.org/stable/c/9714061423b8b24b8afb31b8eb4df977c63f19c4"
}
],
"title": "crypto: qat - add param check for RSA",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2022-49563",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-01T19:37:10.210375Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-191",
"description": "CWE-191 Integer Underflow (Wrap or Wraparound)"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-01T19:46:38.670Z"
}
}
]
}
}