The huge quarterly security update included company issued Security Bulletin APSB10-21, patching Adobe Reader up to and including Version 9.3.4 for Windows, mac and UNIX. The patches had originally be scheduled for October 12, 2010 as part of the company s regularly scheduled quarterly update. Included in the patch are fixes for two vulnerabilities that are rated critical and that are already being exploited. The two vulnerabilities have been targeted for at least two months, said Kaspersky Lab.
Source: https://threatpost.com/adobe-issues-huge-patch-reader-and-acrobat-100610/74551/