Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2023-4128

Public on 2023-08-10
Modified on 2024-01-19
Description

A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue.

Severity
Medium
See what this means
CVSS v3 Base Score
6.7
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2023-09-13 23:15 ALAS-2023-1827
Amazon Linux 1 kernel 2023-08-17 11:39 ALAS-2023-1803
Amazon Linux 2 - Core kernel 2023-08-17 11:58 ALAS2-2023-2206
Amazon Linux 2 - Core kernel 2023-09-27 22:48 ALAS2-2023-2268
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-08-31 22:50 ALAS2KERNEL-5.10-2023-039
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-08-31 22:46 ALAS2KERNEL-5.15-2023-026
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-08-17 17:04 ALAS2KERNEL-5.4-2023-051
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-09-27 22:59 ALAS2KERNEL-5.4-2023-054
Amazon Linux 2023 kernel 2023-08-31 21:45 ALAS2023-2023-330

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H