Debian Security Advisory 1377-1 – Matthias Andree discovered that fetchmail, an SSL enabled POP3, APOP and IMAP mail gatherer/forwarder, can under certain circumstances attempt to dereference a NULL pointer and crash.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/59527/dsa-1377-1.txt
Source: https://packetstormsecurity.com/files/59527/Debian-Linux-Security-Advisory-1377-1.html