NULL Pointer Dereference Affecting kernel-rt-core package, versions <0:4.18.0-513.18.1.rt7.320.el8_9


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTCORE-5429389
  • published19 Apr 2023
  • disclosed6 Dec 2022

Introduced: 6 Dec 2022

CVE-2023-2166  (opens in a new tab)
CWE-476  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 kernel-rt-core to version 0:4.18.0-513.18.1.rt7.320.el8_9 or higher.
This issue was patched in RHSA-2024:0881.

NVD Description

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