#VU99206 Input validation error in Linux kernel - CVE-2022-48999
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99206
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-2022-48999
CWE-ID: CWE-20
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 improper input validation within the ipv4_fcnal() function in tools/testing/selftests/net/fib_nexthops.sh, within the fib_nh_match() function in net/ipv4/fib_semantics.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32
- https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e
- https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133
- https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2
- https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.158
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.82
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.226
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1