CVE-2022-42720
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 14, 2022
First seenOct 14, 2022
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel5.4.218, 5.10.148, 5.15.74, 5.19.16, 6.0.2 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
- debian.org/security/2022/dsa-5257
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.1 ≤ v < 5.4.218, 5.5 ≤ v < 5.10.148, 5.11 ≤ v < 5.15.74, 5.16 ≤ v < 5.19.16, 6.0 ≤ v < 6.0.2 | 5.4.218, 5.10.148, 5.15.74, 5.19.16, 6.0.2 |
| fedoraproject fedora | 36, 37 | — |
| debian debian_linux | 10.0, 11.0 | — |
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