Resource Exhaustion Affecting kernel-rt-modules-extra package, versions <0:4.18.0-372.40.1.rt7.197.el8_6


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (42nd percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTMODULESEXTRA-6007438
  • published26 Mar 2023
  • disclosed27 Dec 2022

Introduced: 27 Dec 2022

CVE-2021-4235  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-modules-extra to version 0:4.18.0-372.40.1.rt7.197.el8_6 or higher.
This issue was patched in RHSA-2022:7398.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.

CVSS Scores

version 3.1