Race Condition Affecting kernel-devel-rt package, versions <5.3.18-150300.71.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

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  • Snyk IDSNYK-SLES153-KERNELDEVELRT-2644380
  • published14 Apr 2022
  • disclosed2 Feb 2022

Introduced: 2 Feb 2022

CVE-2021-44733  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-devel-rt to version 5.3.18-150300.71.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel-rt package and not the kernel-devel-rt package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

References

CVSS Scores

version 3.1