NULL Pointer Dereference Affecting kernel-rt-modules-extra package, versions <0:5.14.0-284.48.1.rt14.333.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTMODULESEXTRA-6195250
  • published26 Jan 2024
  • disclosed6 Dec 2022

Introduced: 6 Dec 2022

CVE-2023-2166  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-modules-extra to version 0:5.14.0-284.48.1.rt14.333.el9_2 or higher.
This issue was patched in RHSA-2024:0439.

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:9 relevant fixed versions and status.

A null pointer dereference issue was found in can protocol in net/can/af_can.c in the Linux before Linux. ml_priv may not be initialized in the receive path of CAN frames. A local user could use this flaw to crash the system or potentially cause a denial of service.

CVSS Scores

version 3.1