CVE-2005-2531
openvpn - denial of service
EPSS 1.4%
Description
OpenVPN before 2.0.1, when running with "verb 0" and without TLS authentication, does not properly flush the OpenSSL error queue when a client fails certificate authentication to the server and causes the error to be processed by the wrong client, which allows remote attackers to cause a denial of service (client disconnection) via a large number of failed authentication attempts.
How to fix CVE-2005-2531
To remediate CVE-2005-2531, upgrade the affected package to a fixed version below.
- Debian/openvpn—upgrade to 2.0.2-1 or later
- —upgrade to 2.0-1sarge1 or later
Is CVE-2005-2531 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.0.2-1
- from 0, < 2.0-1sarge1