Secunia Security Advisory – Lincoln Stein has reported a security issue in Crypt::CBC, which can be exploited by malicious people to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44221/sa18755.txt
Source: https://packetstormsecurity.com/files/44221/Secunia-Security-Advisory-18755.html