USN-561-1: pwlib vulnerability

8 January 2008

pwlib vulnerability

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

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

  • pwlib


Jose Miguel Esparza discovered that pwlib did not correctly handle large string lengths. A remote attacker could send specially crafted packets to applications linked against pwlib (e.g. Ekiga) causing them to crash, leading to a denial of service.

Update instructions

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

Ubuntu 7.10
libpt-1.10.0 - 1.10.10-0ubuntu2.1
Ubuntu 7.04
libpt-1.10.0 - 1.10.3-0ubuntu1.1
Ubuntu 6.10
libpt-1.10.0 - 1.10.2.dfsg-0ubuntu3.1
Ubuntu 6.06 LTS
libpt-1.10.0 - 1.10.0-1ubuntu1.1

To update your system, please follow these instructions:

After a standard system upgrade you need to restart your session to effect the necessary changes.