SB2023103125 - Denial of service in WireGuard client for Windows
Published: October 31, 2023
Security Bulletin ID
SB2023103125
Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Externally Controlled Reference to a Resource in Another Sphere (CVE-ID: CVE-2023-35838)
The vulnerability allows a remote attacker to block access to certain resources.
The vulnerability exists due to the way WireGuard handles non-RFC1918 IP addresses. A remote attacker can trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.