Unspecified vulnerability in the pdf.xmd module in (1) BitDefender Free Edition 10 and Antivirus Standard 10, (2) BullGuard Internet Security 8.5, and (3) Software602 Groupware Server 6.0.08.1118 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PDF file, possibly related to included compressed streams that were processed with the ASCIIHexDecode filter.  NOTE: some of these details are obtained from third party information.