SB20240531392 - Memory leak in Linux kernel netfilter
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531392
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) Memory leak (CVE-ID: CVE-2021-46996)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the INIT_LIST_HEAD() function 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/2c784a500f5edd337258b0fdb2f31bc9abde1a23
- https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c
- https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f
- https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13