{"id":"CVE-2026-23060","state":"PUBLISHED","title":"crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec\n\nauthencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than\nthe minimum expected length, crypto_authenc_esn_decrypt() can advance past\nthe end of the destination scatterlist and trigger a NULL pointer dereference\nin scatterwalk_map_and_copy(), leading to a kernel panic (DoS).\n\nAdd a minimum AAD length check to fail fast on invalid inputs.","publishedAt":"2026-02-04T16:07:42.860Z","updatedAt":"2026-10-19T18:25:28.430Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"df22c9a65e9a9daa368a72fed596af9d7d5876bb","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"fee86edf5803f1d1f19e3b4f2dacac241bddfa48","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"767e8349f7e929b7dd95c08f0b4cb353459b365e","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"b0a9609283a5c852addb513dafa655c61eebc1ef","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"161bdc90fce25bd9890adc67fa1c8563a7acbf40","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"9532ff0d0e90ff78a214299f594ab9bac81defe4","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"2397e9264676be7794f8f7f1e9763d90bd3c7335","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/authencesn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.3","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","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/authencesn.c"]}],"references":["https://git.kernel.org/stable/c/df22c9a65e9a9daa368a72fed596af9d7d5876bb","https://git.kernel.org/stable/c/fee86edf5803f1d1f19e3b4f2dacac241bddfa48","https://git.kernel.org/stable/c/767e8349f7e929b7dd95c08f0b4cb353459b365e","https://git.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1ef","https://git.kernel.org/stable/c/161bdc90fce25bd9890adc67fa1c8563a7acbf40","https://git.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4","https://git.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335","https://cert-portal.siemens.com/productcert/html/ssa-019113.html","https://cert-portal.siemens.com/productcert/html/ssa-457936.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23060.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23060","state":"PUBLISHED","datePublished":"2026-02-04T16:07:42.860Z","dateUpdated":"2026-10-19T18:25:28.430Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.952Z"},"containers":{"cna":{"title":"crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec\n\nauthencesn assumes an ESP/ESN-formatted AAD. 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inputs."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"df22c9a65e9a9daa368a72fed596af9d7d5876bb","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"fee86edf5803f1d1f19e3b4f2dacac241bddfa48","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"767e8349f7e929b7dd95c08f0b4cb353459b365e","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"b0a9609283a5c852addb513dafa655c61eebc1ef","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"161bdc90fce25bd9890adc67fa1c8563a7acbf40","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"9532ff0d0e90ff78a214299f594ab9bac81defe4","versionType":"git"},{"version":"104880a6b470958ddc30e139c41aa4f6ed3a5234","status":"affected","lessThan":"2397e9264676be7794f8f7f1e9763d90bd3c7335","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["crypto/authencesn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.3","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","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/authencesn.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/df22c9a65e9a9daa368a72fed596af9d7d5876bb"},{"url":"https://git.kernel.org/stable/c/fee86edf5803f1d1f19e3b4f2dacac241bddfa48"},{"url":"https://git.kernel.org/stable/c/767e8349f7e929b7dd95c08f0b4cb353459b365e"},{"url":"https://git.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1ef"},{"url":"https://git.kernel.org/stable/c/161bdc90fce25bd9890adc67fa1c8563a7acbf40"},{"url":"https://git.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4"},{"url":"https://git.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:59:13.583Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.10.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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