Debian Security Advisory DSA 939-1 – Daniel Drake discovered a problem in fetchmail, an SSL enabled POP3, APOP, IMAP mail gatherer/forwarder, that can cause a crash when the program is running in multidrop mode and receives messages without headers.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/43090/dsa-939-1.txt
Source: https://packetstormsecurity.com/files/43090/Debian-Linux-Security-Advisory-939-1.html