USN-3789-1: ClamAV vulnerability

11 October 2018

clamav vulnerability

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

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


ClamAV could be made to crash if it opened a specially crafted file.

Software Description

  • clamav - Anti-virus utility for Unix


It was discovered that ClamAV incorrectly handled unpacking MEW executables. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 18.04 LTS
clamav - 0.100.2+dfsg-1ubuntu0.18.04.1
Ubuntu 16.04 LTS
clamav - 0.100.2+dfsg-1ubuntu0.16.04.1
Ubuntu 14.04 LTS
clamav - 0.100.2+dfsg-1ubuntu0.14.04.1

To update your system, please follow these instructions:

This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.