Password Generator (aka Pwgen) before 2.07 uses weak pseudo generated numbers when /dev/urandom is unavailable, which makes it easier for context-dependent attackers to guess the numbers.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=672241
http://www.openwall.com/lists/oss-security/2013/10/16/15
http://www.openwall.com/lists/oss-security/2013/06/06/1
http://www.mandriva.com/security/advisories?name=MDVSA-2015:008
http://sourceforge.net/p/pwgen/code/ci/00118ccac4656adb028504639b313d7b09e62b79/
http://lists.fedoraproject.org/pipermail/package-announce/2014-December/146285.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-December/146237.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-December/146015.html