Vulnerable Systems:
* Adobe Reader version 9.3.2 and prior
* Adobe Acrobat version 9.3.2 and prior
Immune Systems:
* Adobe Acrobat version 9.3.3
* Adobe Acrobat version 8.2.3
* Adobe Reader version 9.3.3
* Adobe Reader version 8.2.3
This vulnerability is caused by a memory corruption error when processing the "newclass" operator (bytecode 0x58) while parsing Flash content within a PDF document, which could be exploited by attackers to execute arbitrary code by tricking a user into opening a malicious PDF file.