[USN-4552-2] Pam-python vulnerability

[Mike Salvatore]

==========================================================================
Ubuntu Security Notice USN-4552-2
October 21, 2020

pam-python vulnerability
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

Pam-python could be made to crash or run programs as an administrator
if certain environment variables are set.

Software Description:
- pam-python: Enables PAM modules to be written in Python

Details:

Malte Kraus discovered that Pam-python mishandled certain environment
variables. A local attacker could potentially use this vulnerability to
execute programs as root.

Update instructions:

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

Ubuntu 16.04 LTS:
  libpam-python                   1.0.4-1.1+deb8u1build0.16.04.1

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

References:
  https://usn.ubuntu.com/4552-2
  https://usn.ubuntu.com/4552-1
  CVE-2019-16729

Package Information:
  https://launchpad.net/ubuntu/+source/pam-python/1.0.4-1.1+deb8u1build0.16.04.1

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