[USN-4066-2] ClamAV vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-4066-2
July 22, 2019

clamav vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

ClamAV could be made to expose sensitive information if it received
a specially crafted CHM file.

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

Details:

USN-4066-1 fixed a vulnerability in libmspack. This update provides
the corresponding update for ClamAV in Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 It was discovered that ClamAV incorrectly handled certain CHM files.
 A remote attacker could possibly use this issue to access sensitive information.

Update instructions:

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

Ubuntu 14.04 ESM:
  clamav                          0.100.3+dfsg-0ubuntu0.14.04.1+esm1

Ubuntu 12.04 ESM:
  clamav                          0.100.3+dfsg-1ubuntu0.12.04.2

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

References:
  https://usn.ubuntu.com/4066-2
  https://usn.ubuntu.com/4066-1
  CVE-2019-1010305
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