CVE-2023-4244

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

06/09/2023

Last modified:

13/02/2025

Description

A use-after-free vulnerability in the Linux kernel&#39;s netfilter: nf_tables component can be exploited to achieve local privilege escalation.<br /> <br /> Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.<br /> <br /> We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.

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