SB20241230186 - Improper locking in Linux kernel net netfilter
Published: December 30, 2024 Updated: May 11, 2025
Security Bulletin ID
SB20241230186
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) Improper locking (CVE-ID: CVE-2024-56655)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nf_tables_newtable(), nf_tables_rule_destroy(), nf_tables_deactivate_set(), __nft_release_basechain_now() and __nft_release_basechain() 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/27f0574253f6c24c8ee4e3f0a685b75ed3a256ed
- https://git.kernel.org/stable/c/7cf0bd232b565d9852cb25fd094f77254773e048
- https://git.kernel.org/stable/c/b04df3da1b5c6f6dc7cdccc37941740c078c4043
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.67