DEBIAN-CVE-2023-6817

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2023-6817
Published: 18 Dec 2023, 15:15
Last modified:28 Apr 2026, 20:27

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Dec 2023, 15:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:27
Last Modified
Vulnerability information updated

Description

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 5.10.205-2 | < 6.1.69-1 | < 6.6.8-1 | < 6.6.8-1

References (1)