USN-994-1: libHX vulnerability

29 September 2010

libhx vulnerability

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

  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.04 LTS


Software Description

  • libhx


It was discovered that libHX incorrectly handled certain parameters to the HX_split function. An attacker could use this flaw to cause a denial of service or possibly execute arbitrary code with the privileges of the user.

The default compiler options for affected releases should reduce the vulnerability to a denial of service.

Update instructions

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

Ubuntu 10.04 LTS
libhx22 - 3.2-1ubuntu0.1
Ubuntu 9.10
libhx18 - 2.9-3ubuntu0.1
Ubuntu 9.04
libhx14 - 1.28-1ubuntu0.1
Ubuntu 8.04 LTS
libhx10 - 1.10.2-2ubuntu0.1

To update your system, please follow these instructions:

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