Use After Free Affecting kernel-uek-tools package, versions <0:5.4.17-2136.320.7.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLS-5706898
  • published4 Jun 2023
  • disclosed8 May 2023

Introduced: 8 May 2023

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

How to fix?

Upgrade Oracle:7 kernel-uek-tools to version 0:5.4.17-2136.320.7.el7uek or higher.
This issue was patched in ELSA-2023-12394.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-tools package and not the kernel-uek-tools package as distributed by Oracle. See How to fix? for Oracle:7 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