=========================================================================Ubuntu Security Notice USN-2983-1
May 18, 2016

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Expat could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- expat: XML parsing C library

Details:

Gustavo Grieco discovered that Expat incorrectly handled malformed XML
data. If a user or application linked against Expat were tricked into
opening a crafted XML file, an attacker could cause a denial of service, or
possibly execute arbitrary code. (CVE-2016-0718)

Update instructions:

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

Ubuntu 16.04 LTS:
  lib64expat1                     2.1.0-7ubuntu0.16.04.1
  libexpat1                       2.1.0-7ubuntu0.16.04.1

Ubuntu 15.10:
  lib64expat1                     2.1.0-7ubuntu0.15.10.1
  libexpat1                       2.1.0-7ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  lib64expat1                     2.1.0-4ubuntu1.2
  libexpat1                       2.1.0-4ubuntu1.2

Ubuntu 12.04 LTS:
  lib64expat1                     2.0.1-7.2ubuntu1.3
  libexpat1                       2.0.1-7.2ubuntu1.3

After a standard system upgrade you need to restart any applications linked
against Expat to effect the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-2983-1
  CVE-2016-0718

Package Information:
  https://launchpad.net/ubuntu/+source/expat/2.1.0-7ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/expat/2.1.0-7ubuntu0.15.10.1
  https://launchpad.net/ubuntu/+source/expat/2.1.0-4ubuntu1.2
  https://launchpad.net/ubuntu/+source/expat/2.0.1-7.2ubuntu1.3