CVE-2005-2531

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.

References

http://www.securityfocus.com/bid/14605

http://www.novell.com/linux/security/advisories/2005_20_sr.html

http://www.mandriva.com/security/advisories?name=MDKSA-2005:145

http://www.debian.org/security/2005/dsa-851

http://secunia.com/advisories/17103

http://secunia.com/advisories/16463

http://openvpn.net/changelog.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3