A vulnerability has been discovered in Adobe Reader/Acrobat, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error within CoolType.dll when processing the "uniqueName" entry of SING tables in fonts and can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into opening a malicious PDF file containing a specially crafted embedded font.
The vulnerability is reported in version 8.2.4 (confirmed) and prior and version 9.3.4 (confirmed) and prior.
NOTE: The vulnerability is currently being actively exploited.
Solution: Update to version 8.2.5 and 9.4.
Provided and/or discovered by: Reported as a 0-day.
Original Advisory: Adobe:
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Subject: Adobe Reader / Acrobat SING "uniqueName" Buffer Overflow Vulnerability