USN-4040-1: Expat vulnerability

26 June 2019

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

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Releases

It was discovered that Expat incorrectly handled certain XML files.
An attacker could possibly use this issue to cause a denial of service.

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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

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

USN-4040-2: expat, lib64expat1, libexpat1-dev, libexpat1-udeb, lib64expat1-dev, libexpat1
USN-4852-1: vtk-examples, libvtk5.8, vtk-doc, vtk, python-vtk, libvtk5-dev, libvtk5-qt4-dev, libvtk-java, libvtk5.10, tcl-vtk, libvtk5.10-qt4, libvtk5.8-qt4
USN-5455-1: libxmltok1, libxmltok1-dev, libxmltok

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.