A vulnerability in the Portable Document Format (PDF) scanning
functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and
prior could allow an unauthenticated, remote attacker to cause a denial of
service (DoS) condition on an affected device. The vulnerability is due to
a lack of proper data handling mechanisms within the device buffer while
indexing remaining file data on an affected device. An attacker could
exploit this vulnerability by sending crafted PDF files to an affected
device. A successful exploit could allow the attacker to cause a heap
buffer out-of-bounds read condition, resulting in a crash that could result
in a denial of service condition on an affected device.

mdeslaur