#VU88215 Incorrect calculation in Linux kernel - CVE-2021-46915
Published: April 8, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU88215
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46915
CWE-ID: CWE-682
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 updates from vendor's website.
External links
- 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