ruby/openssl

The Ruby http gem before 0.7.3 does not verify hostnames in SSL connections, which might allow remote attackers to obtain sensitive information via a man-in-the-middle-attack.

The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.