A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
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