Updated clamav packages fix security vulnerabilities:

ClamAV 0.98.6 is a maintenance release to fix some bugs, some of them
being security bugs:

Fix a heap out of bounds condition with crafted Yoda’s crypter
files. This issue was discovered by Felix Groebert of the Google
Security Team.

Fix a heap out of bounds condition with crafted mew packer files. This
issue was discovered by Felix Groebert of the Google Security Team.

Fix a heap out of bounds condition with crafted upx packer files. This
issue was discovered by Kevin Szkudlapski of Quarkslab.

Fix a heap out of bounds condition with crafted upack packer
files. This issue was discovered by Sebastian Andrzej Siewior
(CVE-2014-9328).

Compensate a crash due to incorrect compiler optimization when handling
crafted petite packer files. This issue was discovered by Sebastian
Andrzej Siewior.