Out-of-bounds Read Affecting kernel-debug-modules-extra package, versions <0:4.18.0-372.87.1.el8_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELDEBUGMODULESEXTRA-6204733
  • published26 Jan 2024
  • disclosed1 Jan 2023

Introduced: 1 Jan 2023

CVE-2023-23454  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-debug-modules-extra to version 0:4.18.0-372.87.1.el8_6 or higher.
This issue was patched in RHSA-2024:0412.

NVD Description

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

cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

CVSS Scores

version 3.1