#VU80933 Input validation error in OpenBSD

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Main Vulnerability Database Vulnerabilities #VU80933

#VU80933 Input validation error in OpenBSD

Published: September 20, 2023


Vulnerability identifier: #VU80933
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
OpenBSD
Software vendor:
OpenBSD

Description

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 updates from vendor's website.

External links