{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53705","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-22T13:21:37.346Z","datePublished":"2025-10-22T13:23:42.641Z","dateUpdated":"2026-05-11T19:50:15.638Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:50:15.638Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix out-of-bounds access in ipv6_find_tlv()\n\noptlen is fetched without checking whether there is more than one byte to parse.\nIt can lead to out-of-bounds access.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv6/exthdrs_core.c"],"versions":[{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"59e656d0d4a84ea0ee9a39c6f69160a3effccc94","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"04bf69e3de435d793a203aacc4b774f8f9f2baeb","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"011f47c8b8389154f996f5f69da8efc3a3beefef","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"e5f82688ae10f5f386952e65e941bb8868ee54dc","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"9b92e2d0eb696d7586ba832c8854653b59887da0","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"91dd8aab9c9f193210681b86b6b92840ffe74f0c","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"ae68c0f7edbc9a294094ce03a0aaf45aa489ce40","status":"affected","versionType":"git"},{"version":"c61a404325093250b676f40ad8f4dd00f3bcab5f","lessThan":"878ecb0897f4737a4c9401f3523fd49589025671","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv6/exthdrs_core.c"],"versions":[{"version":"2.6.19","status":"affected"},{"version":"0","lessThan":"2.6.19","status":"unaffected","versionType":"semver"},{"version":"4.14.316","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.284","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.244","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.181","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.114","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.31","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.3.5","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","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":"2.6.19","versionEndExcluding":"4.14.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"4.19.284"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.15.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.1.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.3.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94"},{"url":"https://git.kernel.org/stable/c/04bf69e3de435d793a203aacc4b774f8f9f2baeb"},{"url":"https://git.kernel.org/stable/c/011f47c8b8389154f996f5f69da8efc3a3beefef"},{"url":"https://git.kernel.org/stable/c/e5f82688ae10f5f386952e65e941bb8868ee54dc"},{"url":"https://git.kernel.org/stable/c/9b92e2d0eb696d7586ba832c8854653b59887da0"},{"url":"https://git.kernel.org/stable/c/91dd8aab9c9f193210681b86b6b92840ffe74f0c"},{"url":"https://git.kernel.org/stable/c/ae68c0f7edbc9a294094ce03a0aaf45aa489ce40"},{"url":"https://git.kernel.org/stable/c/878ecb0897f4737a4c9401f3523fd49589025671"}],"title":"ipv6: Fix out-of-bounds access in ipv6_find_tlv()","x_generator":{"engine":"bippy-1.2.0"}}}}