Race Condition Affecting kernel-uek-tools package, versions <0:5.4.17-2136.304.4.1.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLS-2605749
  • published10 Apr 2022
  • disclosed22 Dec 2021

Introduced: 22 Dec 2021

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

How to fix?

Upgrade Oracle:7 kernel-uek-tools to version 0:5.4.17-2136.304.4.1.el7uek or higher.
This issue was patched in ELSA-2022-9147.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-tools package and not the kernel-uek-tools package as distributed by Oracle. See How to fix? for Oracle:7 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.

CVSS Scores

version 3.1