CVE-2005-2532 Denial of service in n/a

Medium 5.0 Published 24 Aug 2005 Updated 7 Aug 2024

Remote authenticated attackers can cause denial of service by sending undecryptable packets, leading to client disconnection.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2005-2532?

CVE-2005-2532 is a medium-severity denial of service vulnerability in n/a, published on 24 Aug 2005. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenVPN before 2.0.1 does not properly flush the OpenSSL error queue when a packet can not be decrypted by the server, which allows remote authenticated attackers to cause a denial of service (client disconnection) via a large number of packets that can not be decrypted.

Which versions are affected by CVE-2005-2532?

It affects 1 product.

Products include Openvpn Openvpn.

How do I fix CVE-2005-2532?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2005-2532 being exploited?

There is no known exploitation of CVE-2005-2532 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2005-2532, GHSA-86x4-whvc-8cfg.