Debian Security Advisory 1888-1 – Certificates with MD2 hash signatures are no longer accepted by OpenSSL, since they’re no longer considered cryptographically secure.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81358/dsa-1888-1.txt
Source: https://packetstormsecurity.com/files/81358/Debian-Linux-Security-Advisory-1888-1.html