Debian Security Advisory 1042-1: The Mu Security research team discovered a denial of service condition in the Simple Authentication and Security Layer authentication library (SASL) during DIGEST-MD5 negotiation. This potentially affects multiple products that use SASL DIGEST-MD5 authentication including OpenLDAP, Sendmail, Postfix, etc.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/45694/dsa-1042-1.txt
Source: https://packetstormsecurity.com/files/45694/Debian-Linux-Security-Advisory-1042-1.html