USN-955-2: libpam-opie vulnerability

21 June 2010

libpam-opie vulnerability

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

  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 9.04


Software Description

  • libpam-opie


USN-955-1 fixed vulnerabilities in OPIE. This update provides rebuilt libpam-opie packages against the updated libopie library.

Original advisory details:

Maksymilian Arciemowicz and Adam Zabrocki discovered that OPIE incorrectly handled long usernames. A remote attacker could exploit this with a crafted username and make applications linked against libopie crash, leading 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
libpam-opie - 0.21-8build3.1
Ubuntu 9.10
libpam-opie - 0.21-8build2.1
Ubuntu 9.04
libpam-opie - 0.21-8build1.9.04.1

To update your system, please follow these instructions:

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