CVE-2023-53153

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: Fix use after free for wext

Key information in wext.connect is not reset on (re)connect and can hold data from a previous connection.

Reset key data to avoid that drivers or mac80211 incorrectly detect a WEP connection request and access the freed or already reused memory.

Additionally optimize cfg80211_sme_connect() and avoid an useless schedule of conn_work.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < 66af4a2ab1d65d556d638cb9555a3b823c2557a9affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < 6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < 2cfe78619b0de6d2da773978bc2d22797212eaa7affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < fd081afd21eb35b968b0330700c43ec94986e1c4affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < 22dfb21bf1cd876616d45cda1bc6daa89eec6747affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < f4b6a138efb8a32507b8946104e32cb926308da7affected
LinuxLinuxfffd0934b9390f34bec45762192b7edd3b12b4b5 < 015b8cc5e7c4d7bb671f1984d7b7338c310b185baffected
LinuxLinux2.6.32affected
LinuxLinux0 < 2.6.32unaffected
LinuxLinux4.14.308 <= 4.14.*unaffected
LinuxLinux4.19.276 <= 4.19.*unaffected
LinuxLinux5.4.235 <= 5.4.*unaffected
LinuxLinux5.10.173 <= 5.10.*unaffected
LinuxLinux5.15.99 <= 5.15.*unaffected
LinuxLinux6.1.16 <= 6.1.*unaffected
LinuxLinux6.2.3 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

References