Secunia Security Advisory – PSNC Security Team has reported some vulnerabilities and weaknesses in Gadu-Gadu, which can be exploited by malicious people to cause a DoS (Denial of Service), bypass certain security restrictions, and disclose sensitive information.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/41743/sa17597.txt
Source: https://packetstormsecurity.com/files/41743/Secunia-Security-Advisory-17597.html