Secunia Research has discovered a vulnerability in Adobe Reader, which can be exploited by malicious people to compromise a user’s system. The vulnerability is caused due to a boundary error in the processing of Huffman encoded JBIG2 text region segments. This can be exploited to cause a heap-based buffer overflow via a specially crafted PDF file. Successful exploitation may allow execution of arbitrary code. Adobe Reader version 9.1.0 is affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78262/secunia-arjtrs.txt
Source: https://packetstormsecurity.com/files/78262/Adobe-Reader-JBIG2-Text-Region-Segment-Buffer-Overflow.html