Use After Free Affecting kernel-livepatch-5_14_21-150400_15_5-rt package, versions <1-150400.1.3.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.9% (59th percentile)

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  • Snyk IDSNYK-SLES154-KERNELLIVEPATCH51421150400155RT-3181158
  • published24 Dec 2022
  • disclosed23 Dec 2022

Introduced: 23 Dec 2022

CVE-2022-42720  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-livepatch-5_14_21-150400_15_5-rt to version 1-150400.1.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_15_5-rt package and not the kernel-livepatch-5_14_21-150400_15_5-rt package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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.

References

CVSS Base Scores

version 3.1