CVE-2023-31436

Updated: 2025-08-20 00:12:09.838121

Description:

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x HIGH 7.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 7.8 HIGH Not Vulnerable 2024-01-20 10:09:33
CentOS 6 ELS kernel 2.6.32 7.8 HIGH Released CLSA-2023:1700591071 2023-12-05 13:16:20
CentOS 7 ELS kernel 3.10.0 7.8 HIGH Already Fixed 2024-07-02 11:25:30
CentOS 8.4 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2023:1686585068 2023-06-13 09:05:17
CentOS 8.5 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2023:1686651204 2023-06-13 09:05:18
CentOS Stream 8 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2025:1747688581 2025-05-21 01:45:50
CloudLinux 6 ELS kernel 2.6.32 7.8 HIGH Ignored 2025-01-10 22:44:19
Oracle Linux 6 ELS kernel 2.6.32 7.8 HIGH Released CLSA-2023:1700590262 2023-11-21 13:17:22
Ubuntu 16.04 ELS linux-hwe 4.15.0 7.8 HIGH Released CLSA-2023:1685972472 2023-06-05 11:04:53
Ubuntu 16.04 ELS linux 4.4.0 7.8 HIGH Released CLSA-2023:1684277390 2023-05-16 21:13:43
Total: 11