Access of Resource Using Incompatible Type ('Type Confusion') Affecting kernel-tools package, versions <0:4.18.0-513.5.1.el8_9


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELTOOLS-6089171
  • published27 Nov 2023
  • disclosed14 Nov 2023

Introduced: 14 Nov 2023

CVE-2023-23455  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-tools to version 0:4.18.0-513.5.1.el8_9 or higher.
This issue was patched in ALSA-2023:7077.

NVD Description

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

atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service 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