NGSSoftware Insight Security Research Advisory – Sybase ASE versions prior to 12.5.3 ESD#1 suffer from multiple buffer overflows and denial of service vulnerabilities.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/37011/sybase-ase.txt
Source: https://packetstormsecurity.com/files/37011/sybase-ase.txt.html

