[USN-3722-4] ClamAV regression

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3722-4
July 26, 2018

clamav regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

USN-3722-1 introduced a regression in ClamAV.

Software Description:
- clamav: Anti-virus utility for Unix

Details:

USN-3722-1 fixed vulnerabilities in ClamAV. The updated ClamAV version
removed some configuration options which caused the daemon to fail to
start in environments where the ClamAV configuration file was manually
edited. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that ClamAV incorrectly handled parsing certain HWP
 files. A remote attacker could use this issue to cause ClamAV to hang,
 resulting in a denial of service. (CVE-2018-0360)

 It was discovered that ClamAV incorrectly handled parsing certain PDF
 files. A remote attacker could use this issue to cause ClamAV to hang,
 resulting in a denial of service. (CVE-2018-0361)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
  clamav                          0.100.1+dfsg-1ubuntu0.12.04.2

In general, a standard system update will make all the necessary
changes.

References:
  https://usn.ubuntu.com/usn/usn-3722-4
  https://usn.ubuntu.com/usn/usn-3722-1
  https://launchpad.net/bugs/1783632
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