{"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"}}]}}