[USN-3940-2] ClamAV vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3940-2
April 08, 2019

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-3940-1 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 scanning certain PDF
 documents. A remote attacker could possibly use this issue to cause
 ClamAV to crash, resulting in a denial of service. (CVE-2019-1787)

 It was discovered that ClamAV incorrectly handled scanning certain
 OLE2 files. A remote attacker could use this issue to cause ClamAV to
 crash, resulting in a denial of service, or possibly execute arbitrary
 code. (CVE-2019-1788)

 It was discovered that ClamAV incorrectly handled scanning certain PE
 files. A remote attacker could possibly use this issue to cause ClamAV
 to crash, resulting in a denial of service. (CVE-2019-1789)

Update instructions:

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

Ubuntu 12.04 ESM:
  clamav                          0.100.3+dfsg-1ubuntu0.12.04.1

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/usn/usn-3940-2
  https://usn.ubuntu.com/usn/usn-3940-1
  CVE-2019-1787, CVE-2019-1788, CVE-2019-1789
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