#VU106864 Buffer overflow in Linux kernel - CVE-2025-21994
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106864
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-2025-21994
CWE-ID: CWE-119
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 memory corruption within the parse_dacl() function in fs/smb/server/smbacl.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/1b8b67f3c5e5169535e26efedd3e422172e2db64
- https://git.kernel.org/stable/c/9c4e202abff45f8eac17989e549fc7a75095f675
- https://git.kernel.org/stable/c/a4cb17797a5d241f1e509cb5b46ed95a80c2f5fd
- https://git.kernel.org/stable/c/d0f87370622a853b57e851f7d5a5452b72300f19
- https://git.kernel.org/stable/c/f6a6721802ac2f12f4c1bbe839a4c229b61866f2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.9