[USN-3722-6] ClamAV vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3722-6
September 18, 2018

clamav vulnerabilities
==========================================================================

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 new package introduced
an issue which caused dpkg-reconfigure to enter an infinite loop. 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-1ubuntu0.12.04.4

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

References:
  https://usn.ubuntu.com/usn/usn-3722-6
  https://usn.ubuntu.com/usn/usn-3722-1
  https://launchpad.net/bugs/1792051
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