SB2025082080 - Use of uninitialized resource in Linux kernel net ppp driver
Published: August 20, 2025
Security Bulletin ID
SB2025082080
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2025-38574)
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 pptp_xmit() function in drivers/net/ppp/pptp.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1a04db0fd75cb6034fc27a56b67b3b8b9022a98c
- https://git.kernel.org/stable/c/5005d24377378a20e5c0e53052fc4ebdcdcbc611
- https://git.kernel.org/stable/c/504cc4ab91073d2ac7404ad146139f86ecee7193
- https://git.kernel.org/stable/c/b7dcda76fd0615c0599c89f36873a6cd48e02dbb
- https://git.kernel.org/stable/c/de9c4861fb42f0cd72da844c3c34f692d5895b7b
- https://git.kernel.org/stable/c/ea99b88b1999ebcb24d5d3a6b7910030f40d3bba