SB2024040862 - Denial of service in Linux kernel nft_limit
Published: April 8, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024040862
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) Incorrect calculation (CVE-ID: CVE-2021-46915)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the nft_limit_init() function in net/netfilter/nft_limit.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/9065ccb9ec92c5120e7e97958397ebdb454f23d6
- https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26
- https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef
- https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2
- https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071
- https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.232
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.189
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.32
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.114