CVE-2005-2531 Affecting openvpn package, versions <2.0.2-1


Severity

Recommended
high

Based on Debian security rating.

Threat Intelligence

EPSS
1.72% (88th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN13-OPENVPN-5692051
  • published24 Aug 2005
  • disclosed24 Aug 2005

Introduced: 24 Aug 2005

CVE-2005-2531  (opens in a new tab)

How to fix?

Upgrade Debian:13 openvpn to version 2.0.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openvpn package and not the openvpn package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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.

CVSS Scores

version 3.1