USN-3393-1: ClamAV vulnerabilities

Releases

• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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 versions:

Ubuntu 17.04

• clamav - 0.99.2+dfsg-6ubuntu0.1

Ubuntu 16.04

• clamav - 0.99.2+dfsg-0ubuntu0.16.04.2

Ubuntu 14.04

• clamav - 0.99.2+addedllvm-0ubuntu0.14.04.2

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

References

• CVE-2017-6418
• CVE-2017-6419
• CVE-2017-6420

Related notices

• USN-3393-2: clamav
• USN-3394-1: libmspack0, libmspack-doc, libmspack, libmspack-dev