The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for remote attackers to spoof a signature, or determine the signing key of a signed message, via a brute-force attack.

• https://rt.cpan.org/Public/Bug/Display.html?id=71421
• https://bugzilla.redhat.com/show_bug.cgi?id=743567
• http://www.openwall.com/lists/oss-security/2011/10/05/9
• http://www.openwall.com/lists/oss-security/2011/10/05/5
• http://secunia.com/advisories/46275
• http://www.securityfocus.com/bid/49928
• http://osvdb.org/76025