Race Condition Affecting kernel-uek-devel package, versions <0:4.1.12-124.62.3.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2604648
  • published10 Apr 2022
  • disclosed15 Dec 2021

Introduced: 15 Dec 2021

CVE-2021-0920  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.62.3.el7uek or higher.
This issue was patched in ELSA-2022-9348.

NVD Description

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

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

CVSS Scores

version 3.1