libclamav in ClamAV (aka Clam AntiVirus), as used in Advanced Malware Protection (AMP) on Cisco Email Security Appliance (ESA) devices before 9.7.0-125 and Web Security Appliance (WSA) devices before 9.0.1-135 and 9.1.x before 9.1.1-041, allows remote attackers to cause a denial of service (AMP process restart) via a crafted document, aka Bug IDs CSCuv78533 and CSCuw60503.
https://github.com/vrtadmin/clamav-devel/blob/master/ChangeLog
http://www.ubuntu.com/usn/USN-3093-1
http://www.securitytracker.com/id/1035994
http://www.securitytracker.com/id/1035993
http://www.securityfocus.com/bid/90968
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160531-wsa-esa