{"id":"CVE-2023-53165","state":"PUBLISHED","title":"udf: Fix uninitialized array access for some pathnames","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nudf: Fix uninitialized array access for some pathnames\n\nFor filenames that begin with . and are between 2 and 5 characters long,\nUDF charset conversion code would read uninitialized memory in the\noutput buffer. The only practical impact is that the name may be prepended a\n\"unification hash\" when it is not actually needed but still it is good\nto fix this.","publishedAt":"2025-09-15T14:03:53.987Z","updatedAt":"2026-05-11T19:39:31.837Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"008ae78d1e12efa904dc819b1ec83e2bca6b2c56","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"b37f998d357102e8eb0f8eeb33f03fff22e49cbf","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"4503f6fc95d6dee85fb2c54785848799e192c51c","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"985f9666698960dfc87a106d6314203fa90fda75","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"a6824149809395dfbb5bc36bc7057cc3cb84e56d","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"4d50988da0db167aed6f38685145cb5cd526c4f8","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"028f6055c912588e6f72722d89c30b401bbcf013","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/udf/unicode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.123","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/udf/unicode.c"]}],"references":["https://git.kernel.org/stable/c/008ae78d1e12efa904dc819b1ec83e2bca6b2c56","https://git.kernel.org/stable/c/b37f998d357102e8eb0f8eeb33f03fff22e49cbf","https://git.kernel.org/stable/c/3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d","https://git.kernel.org/stable/c/4503f6fc95d6dee85fb2c54785848799e192c51c","https://git.kernel.org/stable/c/985f9666698960dfc87a106d6314203fa90fda75","https://git.kernel.org/stable/c/a6824149809395dfbb5bc36bc7057cc3cb84e56d","https://git.kernel.org/stable/c/4d50988da0db167aed6f38685145cb5cd526c4f8","https://git.kernel.org/stable/c/028f6055c912588e6f72722d89c30b401bbcf013"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53165.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53165","state":"PUBLISHED","datePublished":"2025-09-15T14:03:53.987Z","dateUpdated":"2026-05-11T19:39:31.837Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T13:59:19.063Z"},"containers":{"cna":{"title":"udf: Fix uninitialized array access for some pathnames","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nudf: Fix uninitialized array access for some pathnames\n\nFor filenames that begin with . and are between 2 and 5 characters long,\nUDF charset conversion code would read uninitialized memory in the\noutput buffer. The only practical impact is that the name may be prepended a\n\"unification hash\" when it is not actually needed but still it is good\nto fix this."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"008ae78d1e12efa904dc819b1ec83e2bca6b2c56","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"b37f998d357102e8eb0f8eeb33f03fff22e49cbf","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"4503f6fc95d6dee85fb2c54785848799e192c51c","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"985f9666698960dfc87a106d6314203fa90fda75","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"a6824149809395dfbb5bc36bc7057cc3cb84e56d","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"4d50988da0db167aed6f38685145cb5cd526c4f8","versionType":"git"},{"version":"484a10f49387e4386bf2708532e75bf78ffea2cb","status":"affected","lessThan":"028f6055c912588e6f72722d89c30b401bbcf013","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/udf/unicode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.123","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/udf/unicode.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/008ae78d1e12efa904dc819b1ec83e2bca6b2c56"},{"url":"https://git.kernel.org/stable/c/b37f998d357102e8eb0f8eeb33f03fff22e49cbf"},{"url":"https://git.kernel.org/stable/c/3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d"},{"url":"https://git.kernel.org/stable/c/4503f6fc95d6dee85fb2c54785848799e192c51c"},{"url":"https://git.kernel.org/stable/c/985f9666698960dfc87a106d6314203fa90fda75"},{"url":"https://git.kernel.org/stable/c/a6824149809395dfbb5bc36bc7057cc3cb84e56d"},{"url":"https://git.kernel.org/stable/c/4d50988da0db167aed6f38685145cb5cd526c4f8"},{"url":"https://git.kernel.org/stable/c/028f6055c912588e6f72722d89c30b401bbcf013"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:39:31.837Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"4.14.324"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"4.19.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.4.255"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.10.192"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.15.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.4.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}