#VU104963 Use-after-free in Linux kernel - CVE-2025-21718
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104963
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21718
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the rose_heartbeat_expiry(), rose_timer_expiry() and rose_idletimer_expiry() functions in net/rose/rose_timer.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1992fb261c90e9827cf5dc3115d89bb0853252c9
- https://git.kernel.org/stable/c/51c128ba038cf1b79d605cbee325919b45ab95a5
- https://git.kernel.org/stable/c/58051a284ac18a3bb815aac6289a679903ddcc3f
- https://git.kernel.org/stable/c/5de7665e0a0746b5ad7943554b34db8f8614a196
- https://git.kernel.org/stable/c/f55c88e3ca5939a6a8a329024aed8f3d98eea8e4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.129