Use of Uninitialized Resource Affecting kernel-devel package, versions <0:4.14.262-200.489.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELDEVEL-2395678
  • published8 Feb 2022
  • disclosed22 Dec 2021

Introduced: 22 Dec 2021

CVE-2021-44733  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-devel to version 0:4.14.262-200.489.amzn2 or higher.
This issue was patched in ALAS2-2022-1749.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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