[USN-3728-3] ClamAV vulnerabilities

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[USN-3728-3] ClamAV vulnerabilities

Leonidas S. Barbosa
==========================================================================
Ubuntu Security Notice USN-3728-3
August 02, 2018

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

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in ClamAV.

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

Details:

USN-3728-2 fixed several vulnerabilities in ClamAV. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Hanno Böck discovered that libmspack incorrectly handled certain CHM
 files. An attacker could possibly use this issue to cause a denial of
 service. (CVE-2018-14679, CVE-2018-14680)

 Jakub Wilk discovered that libmspack incorrectly handled certain KWAJ
 files. An attacker could possibly use this issue to execute arbitrary
 code. (CVE-2018-14681)

 Dmitry Glavatskikh discovered that libmspack incorrectly certain CHM
 files. An attacker could possibly use this issue to execute arbitrary
 code. (CVE-2018-14682)

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-1ubuntu0.12.04.3

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

References:
  https://usn.ubuntu.com/usn/usn-3728-3
  https://usn.ubuntu.com/usn/usn-3728-1
  CVE-2018-14679, CVE-2018-14680, CVE-2018-14681, CVE-2018-14682
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