Use After Free Affecting kernel-core package, versions <0:5.14.0-362.24.1.el9_3


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELCORE-6467582
  • published20 Mar 2024
  • disclosed18 Dec 2023

Introduced: 18 Dec 2023

CVE-2023-6817  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-core to version 0:5.14.0-362.24.1.el9_3 or higher.
This issue was patched in ELSA-2024-1248.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by Oracle. See How to fix? for Oracle: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 function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.

We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.

CVSS Base Scores

version 3.1