#VU106840 Use of uninitialized resource in Linux kernel - CVE-2025-21959
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106840
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-2025-21959
CWE-ID: CWE-908
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 use of uninitialized resource within the raw_smp_processor_id() function in net/netfilter/nf_conncount.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/2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc
- https://git.kernel.org/stable/c/a62a25c6ad58fae997f48a0749afeda1c252ae51
- https://git.kernel.org/stable/c/d653bfeb07ebb3499c403404c21ac58a16531607
- https://git.kernel.org/stable/c/db1e0c0856821c59a32ea3af79476bf20a6beeb2
- https://git.kernel.org/stable/c/fda50302a13701d47fbe01e1739c7a51114144fb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.84