Use After Free Affecting kernel-macros package, versions <5.3.18-24.49.2


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.27% (51st percentile)

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  • Snyk IDSNYK-SLES152-KERNELMACROS-2690039
  • published14 Apr 2022
  • disclosed9 Feb 2021

Introduced: 9 Feb 2021

CVE-2021-3347  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-macros to version 5.3.18-24.49.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-macros package and not the kernel-macros package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.

References

CVSS Base Scores

version 3.1