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USN-4040-2: 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.

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Releases

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.

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 14.04
Ubuntu 12.04

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

References

Related notices

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