CVE-2017-12374

The ClamAV AntiVirus software versions 0.99.2 and prior contain a
vulnerability that 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 input validation checking mechanisms
during certain mail parsing operations (mbox.c operations on bounce
messages). If successfully exploited, the ClamAV software could allow a
variable pointing to the mail body which could cause a used after being
free (use-after-free) instance which may lead to a disruption of services
on an affected device to include a denial of service condition.

Bugs

• <https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1745635&gt;