RSA-CRT key leak under certain conditions
FortiOS now includes for all SSL libraries a countermeasure against Lenstra's fault
attack on RSA-CRT optimization when a RSA signature is corrupted.
FortiGate with the SSLVPN web portal feature configured.
Upgrade to FortiOS 5.0.13 / 5.2.6 / 5.4.0
As a workaround the SSLVPN web portal can be disabled