SB2025022719 - Input validation error in Linux kernel netfilter
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022719
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) Input validation error (CVE-ID: CVE-2022-49698)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the DEFINE_PER_CPU(), nft_ng_random_gen() and nft_ng_random_init() functions in net/netfilter/nft_numgen.c, within the DEFINE_PER_CPU(), nft_meta_get_eval_ifname(), nft_meta_get_eval() and nft_meta_get_init() functions in net/netfilter/nft_meta.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/15cc30ac2a8d7185f8ebf97dd1ddd90a7c79783b
- https://git.kernel.org/stable/c/6ce71f83f798be7e1ca68707fec449fbecb38852
- https://git.kernel.org/stable/c/b1fd94e704571f98b21027340eecf821b2bdffba
- https://git.kernel.org/stable/c/d0906b0fffc9f19bc42708ca3e84e2089088386c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.51