This indicates an attempt to exploit an integer overflow vulnerability in Clam AntiVirus (ClamAV).
The vulnerability is caused by an integer overflow error that occurs in the "libclamav/pe.c" file when handling certain PE files. It can be exploited to crash the application or execute arbitrary code.
ClamAV prior to 0.92.1
System Compromise: remote code execution.
Denial of Service.
Upgrade to the latest version of ClamAV (0.92.1 or later):