crypto/rsa/rsa_gen.c in OpenSSL before 0.9.6 mishandles C bitwise-shift operations that exceed the size of an expression, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging improper RSA key generation on 64-bit HP-UX platforms.
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=db82b8f9bd432a59aea8e1014694e15fc457c2bb
http://www.securitytracker.com/id/1035750
http://www.securityfocus.com/bid/90109
http://www.openwall.com/lists/oss-security/2016/05/04/17