#VU105421 Buffer overflow in Linux kernel - CVE-2025-21826
Published: March 6, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105421
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-2025-21826
CWE-ID: CWE-119
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 memory corruption within the nft_set_desc_concat_parse() and nft_set_desc_concat() functions in net/netfilter/nf_tables_api.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/1b9335a8000fb70742f7db10af314104b6ace220
- https://git.kernel.org/stable/c/2ac254343d3cf228ae0738b2615fedf85d000752
- https://git.kernel.org/stable/c/49b7182b97bafbd5645414aff054b4a65d05823d
- https://git.kernel.org/stable/c/82e491e085719068179ff6a5466b7387cc4bbf32
- https://git.kernel.org/stable/c/ab50d0eff4a939d20c37721fd9766347efcdb6f6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2