USN-3393-1: ClamAV vulnerabilities
Ubuntu Security Notice USN-3393-1
17th August, 2017
clamav vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 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 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 version:
- Ubuntu 17.04:
-
clamav
0.99.2+dfsg-6ubuntu0.1
- Ubuntu 16.04 LTS:
-
clamav
0.99.2+dfsg-0ubuntu0.16.04.2
- Ubuntu 14.04 LTS:
-
clamav
0.99.2+addedllvm-0ubuntu0.14.04.2
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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