Use After Free Affecting kernel-rt-debug-modules-core package, versions <0:5.14.0-427.13.1.el9_4


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.41% (74th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELRTDEBUGMODULESCORE-8339596
  • published4 Nov 2024
  • disclosed30 Apr 2024

Introduced: 30 Apr 2024

CVE-2024-1086  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-rt-debug-modules-core to version 0:5.14.0-427.13.1.el9_4 or higher.
This issue was patched in ALSA-2024:2394.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-core package and not the kernel-rt-debug-modules-core package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.

We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

CVSS Scores

version 3.1