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CVE-2023-6817

7.8 high Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 4

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.8 · linuxNVD modified 2026-10-14 23:17

Affected (CPE criteria) 5

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*

References 14