CVE-2007-0003
pam_unix.so in Linux-PAM 0.99.7.0 allows context-dependent attackers to log into accounts whose password hash, as stored in /etc/passwd or /etc/shadow, has only two characters.
Date published : 2007-01-23
http://www.securityfocus.com/bid/22204
http://www.redhat.com/archives/fedora-devel-list/2007-January/msg01271.html