Adobe Reader version 9.3.4 is vulnerable to multiple memory corruption vulnerabilities. By sending specially crafted PDF files it is possible to cause memory corruption in the 3difr and AcroRd32.dll modules. Both issues trigger a null pointer condition which results in an access violation. The issue in AcroRd32.dll is triggered when Adobe Reader is closed.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/94553/SOS-10-003.txt
Source: https://packetstormsecurity.com/files/94553/Adobe-Reader-9.3.4-Multiple-Memory-Corruption-Issues.html