What’s Vulnerable › Vulnerabilities
CVE-2022-42719
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.4% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-10-13 · updated 2026-10-14
- Weakness: CWE-416
Description
A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.
Affected products
- Debian Linux: 10.0, 11.0
- Fedoraproject Fedora: 35, 36, 37
- Linux kernel: from 5.2 before 5.4.219; from 5.5 before 5.10.149; from 5.11 before 5.15.74; from 5.16 before 5.19.16; from 6.0 before 6.0.2 — fixed in 5.10.149, 5.15.74, 5.19.16, 5.4.219, 6.0.2
How to fix
Upgrade to a fixed version: Linux kernel 5.10.149, 5.15.74, 5.19.16, 5.4.219. Check the vendor advisory for mitigations.
References
- http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
- http://www.openwall.com/lists/oss-security/2022/10/13/2
- http://www.openwall.com/lists/oss-security/2022/10/13/5
- https://bugzilla.suse.com/show_bug.cgi?id=1204051
- https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=ff05d4b45dd89b922578dac497dcabf57cf771c6
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
- https://security.netapp.com/advisory/ntap-20230203-0008/
- https://www.debian.org/security/2022/dsa-5257
- http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
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