USN-4040-2: Expat vulnerability

Publication date

26 June 2019

Overview

Expat could be made to consume a high amount of RAM and CPU resources if it received a specially crafted XML file.


Packages

  • expat - XML parsing C library

Details

USN-4040-1 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 cause a denial of service.

USN-4040-1 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 cause a denial of service.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libexpat1 –  2.1.0-4ubuntu1.4+esm1
lib64expat1 –  2.1.0-4ubuntu1.4+esm1
12.04 precise libexpat1 –  2.0.1-7.2ubuntu1.6
lib64expat1 –  2.0.1-7.2ubuntu1.6

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