Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2023-6817

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
18/12/2023
Last modified:
13/02/2025

Description

A use-after-free vulnerability in the Linux kernel&amp;#39;s netfilter: nf_tables component can be exploited to achieve local privilege escalation.<br /> <br /> 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.<br /> <br /> We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.6 (including) 5.10.204 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.143 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.68 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.7 (excluding)
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:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools