SquirrelMail Remote Denial of Service Vulnerability

Summary
SquirrelMail is prone to a remote denial-of-service vulnerability because it fails to properly handle certain user requests. An attacker can exploit this issue to cause the application to consume excessive disk space, resulting in denial-of-service conditions. SquirrelMail versions prior and up to 1.4.20 are vulnerable others may also be affected.
Solution
Updates are available. Please see the references for more information.
References