CVE-2023-4133

MEDIUM

Linux Kernel < 6.3 - Use-After-Free in cxgb4 Driver via Flower Stats Timer Rearming

Title source: llm
STIX 2.1

Description

A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.

References (5)

Core 5
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2394
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2950
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3138
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-4133
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2221702

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 1.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (4)
fedoraproject/fedora
linux/linux_kernel < 6.3
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
Published Aug 03, 2023
Tracked Since Feb 18, 2026