A ClamAV security update has been released for Ubuntu Linux 20.04 LTS, 18.04 LTS, and 16.04 LTS.

USN-4435-1: ClamAV vulnerabilities

==========================================================================
Ubuntu Security Notice USN-4435-1
July 27, 2020

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

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in ClamAV.

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

Details:

It was discovered that ClamAV incorrectly handled parsing ARJ archives. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2020-3327)

It was discovered that ClamAV incorrectly handled scanning malicious files.
A local attacker could possibly use this issue to delete arbitrary files.
(CVE-2020-3350)

It was discovered that ClamAV incorrectly handled parsing EGG archives. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2020-3481)

Update instructions:

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

Ubuntu 20.04 LTS:
clamav 0.102.4+dfsg-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
clamav 0.102.4+dfsg-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
clamav 0.102.4+dfsg-0ubuntu0.16.04.1

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

References:
  https://usn.ubuntu.com/4435-1
CVE-2020-3327, CVE-2020-3350, CVE-2020-3481

Package Information:
  https://launchpad.net/ubuntu/+source/clamav/0.102.4+dfsg-0ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/clamav/0.102.4+dfsg-0ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/clamav/0.102.4+dfsg-0ubuntu0.16.04.1