{"id":"CVE-2025-68724","state":"PUBLISHED","title":"crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id\n\nUse check_add_overflow() to guard against potential integer overflows\nwhen adding the binary blob lengths and the size of an asymmetric_key_id\nstructure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a\npossible buffer overflow when copying data from potentially malicious\nX.509 certificate fields that can be arbitrarily large, such as ASN.1\nINTEGER serial numbers, issuer names, etc.","publishedAt":"2025-12-24T10:33:08.932Z","updatedAt":"2026-10-15T01:09:59.479Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"60a7be5ee74408147e439164ac067e418ca74bb4","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"c13c6e9de91d7f1dd7df756b1fa5a1f968839d76","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"dfc1613961828745165aec6552c3818fa14ab725","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"c73be4f51eed98fa0c7c189db8f279e1c86bfbf7","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"6af753ac5205115e6c310c8c4236c01b59a1c44f","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"b7090a5c153105b9fd221a5a81459ee8cd5babd6","versionType":"git"},{"version":"7901c1a8effbe5f89673bfc09d6e37b8f334f1a7","status":"affected","lessThan":"df0845cf447ae1556c3440b8b155de0926cbaa56","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/asymmetric_keys/asymmetric_type.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.18","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.63","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.13","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18.2","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/asymmetric_keys/asymmetric_type.c"]}],"references":["https://git.kernel.org/stable/c/60a7be5ee74408147e439164ac067e418ca74bb4","https://git.kernel.org/stable/c/c13c6e9de91d7f1dd7df756b1fa5a1f968839d76","https://git.kernel.org/stable/c/dfc1613961828745165aec6552c3818fa14ab725","https://git.kernel.org/stable/c/5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c","https://git.kernel.org/stable/c/c73be4f51eed98fa0c7c189db8f279e1c86bfbf7","https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f","https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6","https://git.kernel.org/stable/c/df0845cf447ae1556c3440b8b155de0926cbaa56","https://cert-portal.siemens.com/productcert/html/ssa-019113.html","https://cert-portal.siemens.com/productcert/html/ssa-457936.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68724.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68724","state":"PUBLISHED","datePublished":"2025-12-24T10:33:08.932Z","dateUpdated":"2026-10-15T01:09:59.479Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:30:51.027Z"},"containers":{"cna":{"title":"crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id\n\nUse check_add_overflow() to guard against potential integer overflows\nwhen adding the binary blob lengths and the size of an asymmetric_key_id\nstructure and return ERR_PTR(-EOVERFLOW) accordingly. 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