=========================================================================Ubuntu Security Notice USN-3393-2
August 17, 2017
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-3393-1 fixed several vulnerabilities in ClamAV. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that ClamAV incorrectly handled parsing certain
e- mail messages. A remote attacker could possibly use this issue to
cause ClamAV to crash, resulting in a denial of service.
(CVE-2017-6418)
It was discovered that ClamAV incorrectly handled certain malformed
CHM files. A remote attacker could use this issue to cause ClamAV to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS. In the default
installation, attackers would be isolated by the ClamAV AppArmor
profile. (CVE-2017-6419)
It was discovered that ClamAV incorrectly handled parsing certain PE
files with WWPack compression. A remote attacker could possibly use
this issue to cause ClamAV to crash, resulting in a denial of service.
(CVE-2017-6420)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
clamav 0.99.2+addedllvm-0ubuntu0.12.04.2
In general, a standard system update will make all the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-3393-2
https://ubuntu.com/security/notices/USN-3393-1
CVE-2017-6418, CVE-2017-6419, CVE-2017-6420
