A buffer overflow exists in Acrobat and Acrobat Reader. They fail to validate PDF files which use JBIG2 compression routines resulting in a buffer overflow. With a specially crafted file, a context-dependent attacker can cause arbitrary code execution resulting in a loss of integrity.
Local / Remote,
Loss of Integrity
Virus / Malware
Discovered in the Wild
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.