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USN-3356-1: Expat vulnerability

19 July 2017

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



  • expat - XML parsing C library


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

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

Ubuntu 17.04
Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04

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


Related notices

  • USN-3356-2: libexpat1, lib64expat1, expat
  • USN-4825-1: coin3, libcoin80-doc, libcoin80, libcoin80-runtime, libcoin80v5, libcoin80-dev