SB2025030668 - Buffer overflow in Linux kernel netfilter
Published: March 6, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025030668
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2025-21826)
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.
References
- 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