{"id":"CVE-2023-53153","state":"PUBLISHED","title":"wifi: cfg80211: Fix use after free for wext","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Fix use after free for wext\n\nKey information in wext.connect is not reset on (re)connect and can hold\ndata from a previous connection.\n\nReset key data to avoid that drivers or mac80211 incorrectly detect a\nWEP connection request and access the freed or already reused memory.\n\nAdditionally optimize cfg80211_sme_connect() and avoid an useless\nschedule of conn_work.","publishedAt":"2025-09-15T14:03:21.590Z","updatedAt":"2026-05-11T19:39:28.381Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"66af4a2ab1d65d556d638cb9555a3b823c2557a9","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"2cfe78619b0de6d2da773978bc2d22797212eaa7","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"fd081afd21eb35b968b0330700c43ec94986e1c4","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"22dfb21bf1cd876616d45cda1bc6daa89eec6747","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"f4b6a138efb8a32507b8946104e32cb926308da7","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"015b8cc5e7c4d7bb671f1984d7b7338c310b185b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/sme.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"4.14.308","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.276","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.235","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.173","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.99","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/sme.c"]}],"references":["https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9","https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6","https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2","https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7","https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4","https://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747","https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7","https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53153.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53153","state":"PUBLISHED","datePublished":"2025-09-15T14:03:21.590Z","dateUpdated":"2026-05-11T19:39:28.381Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-02T15:51:43.566Z"},"containers":{"cna":{"title":"wifi: cfg80211: Fix use after free for wext","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Fix use after free for wext\n\nKey information in wext.connect is not reset on (re)connect and can hold\ndata from a previous connection.\n\nReset key data to avoid that drivers or mac80211 incorrectly detect a\nWEP connection request and access the freed or already reused memory.\n\nAdditionally optimize cfg80211_sme_connect() and avoid an useless\nschedule of conn_work."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"66af4a2ab1d65d556d638cb9555a3b823c2557a9","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"2cfe78619b0de6d2da773978bc2d22797212eaa7","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"fd081afd21eb35b968b0330700c43ec94986e1c4","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"22dfb21bf1cd876616d45cda1bc6daa89eec6747","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"f4b6a138efb8a32507b8946104e32cb926308da7","versionType":"git"},{"version":"fffd0934b9390f34bec45762192b7edd3b12b4b5","status":"affected","lessThan":"015b8cc5e7c4d7bb671f1984d7b7338c310b185b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/sme.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"4.14.308","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.276","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.235","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.173","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.99","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/sme.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9"},{"url":"https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6"},{"url":"https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2"},{"url":"https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7"},{"url":"https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4"},{"url":"https://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747"},{"url":"https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7"},{"url":"https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:39:28.381Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"4.14.308"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"4.19.276"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.4.235"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.10.173"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.15.99"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.1.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.2.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}