OpenSSH X Connections Session Hijacking Vulnerability

Summary
OpenSSH is prone to a vulnerability that allows attackers to hijack forwarded X connections. Successfully exploiting this issue may allow an attacker run arbitrary shell commands with the privileges of the user running the affected application. This issue affects OpenSSH 4.3p2 other versions may also be affected. NOTE: This issue affects the portable version of OpenSSH and may not affect OpenSSH running on OpenBSD.
Solution
Updates are available. Please see the references for more information.
References