[USN-1395-1] PyPAM vulnerability

2012-03-10T00:00:00
ID SECURITYVULNS:DOC:27744
Type securityvulns
Reporter Securityvulns
Modified 2012-03-10T00:00:00

Description

========================================================================== Ubuntu Security Notice USN-1395-1 March 08, 2012

python-pam vulnerability

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

  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS

Summary:

PyPAM could be made to crash or possibly run programs if it processed a specially crafted password.

Software Description: - python-pam: A Python interface to the PAM library

Details:

Markus Vervier discovered that PyPAM incorrectly handled passwords containing NULL bytes. An attacker could exploit this to cause applications using PyPAM to crash, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 11.10: python-pam 0.4.2-12.2ubuntu2.11.10.1

Ubuntu 11.04: python-pam 0.4.2-12.2ubuntu2.11.04.1

Ubuntu 10.10: python-pam 0.4.2-12.1ubuntu1.10.10.1

Ubuntu 10.04 LTS: python-pam 0.4.2-12.1ubuntu1.10.04.1

After a standard system update you need to restart applications that use PyPAM to make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-1395-1 CVE-2012-1502

Package Information: https://launchpad.net/ubuntu/+source/python-pam/0.4.2-12.2ubuntu2.11.10.1 https://launchpad.net/ubuntu/+source/python-pam/0.4.2-12.2ubuntu2.11.04.1 https://launchpad.net/ubuntu/+source/python-pam/0.4.2-12.1ubuntu1.10.10.1 https://launchpad.net/ubuntu/+source/python-pam/0.4.2-12.1ubuntu1.10.04.1