SB2023092053 - Remote denial of service in OpenBSD npppd
Published: September 20, 2023
Security Bulletin ID
SB2023092053
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the npppd(8) daemon. A remote attacker can send a specially crafted L2TP message with a wrong AVP length to the server and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.