USN-4132-1: Expat vulnerability

12 September 2019

expat vulnerability

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

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

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

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 19.04
libexpat1 - 2.2.6-1ubuntu0.19.5
Ubuntu 18.04 LTS
libexpat1 - 2.2.5-3ubuntu0.2
Ubuntu 16.04 LTS
lib64expat1 - 2.1.0-7ubuntu0.16.04.5
libexpat1 - 2.1.0-7ubuntu0.16.04.5

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References