[USN-4132-2] Expat vulnerability

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[USN-4132-2] Expat vulnerability

Leonidas S. Barbosa
==========================================================================
Ubuntu Security Notice USN-4132-2
September 12, 2019

expat vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Expat could be made to expose sensitive information if it received
a specially crafted XML file.

Software Description:
- expat: XML parsing C library

Details:

USN-4132-1 fixed a vulnerability in Expat. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 It was discovered that Expat incorrectly handled certain XML files.
 An attacker could possibly use this issue to expose sensitive information.

Update instructions:

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

Ubuntu 14.04 ESM:
  lib64expat1                     2.1.0-4ubuntu1.4+esm2
  libexpat1                       2.1.0-4ubuntu1.4+esm2

Ubuntu 12.04 ESM:
  lib64expat1                     2.0.1-7.2ubuntu1.7
  libexpat1                       2.0.1-7.2ubuntu1.7

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

References:
  https://usn.ubuntu.com/4132-2
  https://usn.ubuntu.com/4132-1
  CVE-2019-15903

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