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Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers  (opens in a new tab)

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EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELCROSSHEADERS-6131409
  • published19 Dec 2023
  • disclosed18 Dec 2023
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Introduced: 18 Dec 2023

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

Amendment

The Centos security team deemed this advisory irrelevant for Centos:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by Centos.

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.