CVE-2023-6817

7.8 HIGH
Published: December 18, 2023 Modified: May 12, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a
Source: cve-coordination@google.com
Patch
http://www.openwall.com/lists/oss-security/2023/12/22/13
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2023/12/22/6
Source: af854a3a-2127-422b-91ae-364da2661108
https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

14 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.3%
25th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

linux