| Name | CVE-2022-42720 |
| Description | Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3173-1, DSA-5257-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.226-1 | fixed |
| bookworm | 6.1.115-1 | fixed |
| bookworm (security) | 6.1.119-1 | fixed |
| sid, trixie | 6.11.10-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - linux <not-affected> (Vulnerable code not present)
https://www.openwall.com/lists/oss-security/2022/10/13/2
https://lore.kernel.org/netdev/20221013100522.46346-1-johannes@sipsolutions.net/T/#u
https://github.com/PurpleVsGreen/beacown