USN-3356-1: Expat vulnerability

Publication date

19 July 2017

Overview

Expat could be made to hang if it received specially crafted input.


Packages

  • expat - XML parsing C library

Details

It was discovered that Expat incorrectly handled certain external entities.
A remote attacker could possibly use this issue to cause Expat to hang,
resulting in a denial of service.

It was discovered that Expat incorrectly handled certain external entities.
A remote attacker could possibly use this issue to cause Expat to hang,
resulting in 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
17.04 zesty lib64expat1 –  2.2.0-2ubuntu0.1
libexpat1 –  2.2.0-2ubuntu0.1
16.10 yakkety lib64expat1 –  2.2.0-1ubuntu0.1
libexpat1 –  2.2.0-1ubuntu0.1
16.04 xenial lib64expat1 –  2.1.0-7ubuntu0.16.04.3
libexpat1 –  2.1.0-7ubuntu0.16.04.3
14.04 trusty lib64expat1 –  2.1.0-4ubuntu1.4
libexpat1 –  2.1.0-4ubuntu1.4

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