USN-3513-2: libxml2 vulnerability
Ubuntu Security Notice USN-3513-2
13th December, 2017
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
libxml2 could be made to crash or run arbitrary code if it opened a specially crafted file.
- libxml2 - GNOME XML library
USN-3513-1 fixed a vulnerability in libxml2. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that libxml2 incorrecty handled certain files. An attacker
could use this issue with specially constructed XML data to cause libxml2 to
consume resources, leading to a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.04 LTS:
- libxml2 2.7.8.dfsg-5.1ubuntu4.20
- libxml2-utils 2.7.8.dfsg-5.1ubuntu4.20
- python-libxml2 2.7.8.dfsg-5.1ubuntu4.20
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.