USN-4040-1: Expat vulnerability

USN-4040-1: Expat vulnerability

expat vulnerability

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

• Ubuntu 19.04
• Ubuntu 18.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

Expat could be made to consume a high amount of RAM and CPU resources
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 cause a denial of service.

Update instructions

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

Ubuntu 19.04

libexpat1 – 2.2.6-1ubuntu0.19.04

Ubuntu 18.10

libexpat1 – 2.2.6-1ubuntu0.18.10

Ubuntu 18.04 LTS

libexpat1 – 2.2.5-3ubuntu0.1

Ubuntu 16.04 LTS

lib64expat1 – 2.1.0-7ubuntu0.16.04.4

libexpat1 – 2.1.0-7ubuntu0.16.04.4

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

• CVE-2018-20843

Source: USN-4040-1: Expat vulnerability