Race Condition Affecting kernel-rt-debug-core package, versions <0:4.18.0-348.20.1.rt7.150.el8_5


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELRTDEBUGCORE-3276503
  • published3 Feb 2023
  • 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 Rocky-Linux:8 kernel-rt-debug-core to version 0:4.18.0-348.20.1.rt7.150.el8_5 or higher.
This issue was patched in RLSA-2022:0819.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 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