Use After Free Affecting kernel-rt-modules-extra package, versions <0:5.14.0-284.55.1.rt14.340.el9_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTMODULESEXTRA-6315669
  • published29 Feb 2024
  • disclosed2 Jan 2024

Introduced: 2 Jan 2024

CVE-2024-0193  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-modules-extra to version 0:5.14.0-284.55.1.rt14.340.el9_2 or higher.
This issue was patched in RHSA-2024:1019.

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 use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

CVSS Scores

version 3.1