Use After Free Affecting kernel-rt-modules-extra package, versions <0:4.18.0-477.13.1.rt7.276.el8_8


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTMODULESEXTRA-5666364
  • published5 Jun 2023
  • disclosed21 Jun 2023

Introduced: 5 Jun 2023

CVE-2023-32233  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-modules-extra to version 0:4.18.0-477.13.1.rt7.276.el8_8 or higher.
This issue was patched in ALSA-2023:3350.

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 AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.

CVSS Scores

version 3.1