#VU103016 Out-of-bounds read in Linux kernel - CVE-2025-21653
Published: January 20, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103016
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21653
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the NLA_POLICY_MAX() function in net/sched/cls_flow.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/2011749ca96460386844dfc7e0fde53ebee96f3c
- https://git.kernel.org/stable/c/6fde663f7321418996645ee602a473457640542f
- https://git.kernel.org/stable/c/a039e54397c6a75b713b9ce7894a62e06956aa92
- https://git.kernel.org/stable/c/e54beb9aed2a90dddf4c5d68fcfc9a01f3e40a61
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.72