An AWL security update has been released for Ubuntu Linux 20.04 LTS.

USN-4539-1: AWL vulnerability

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Ubuntu Security Notice USN-4539-1
September 24, 2020

awl vulnerability
==========================================================================

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

- Ubuntu 20.04 LTS

Summary:

DAViCal Andrew's Web Libraries could be made to run programs as your login
if it received specially crafted input.

Software Description:
- awl: PHP Utility Libraries

Details:

Andrew Bartlett discovered that DAViCal Andrew's Web Libraries (AWL) did
not properly manage session keys. An attacker could possibly use this
issue to impersonate a session. (CVE-2020-11728)

Update instructions:

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

Ubuntu 20.04 LTS:
libawl-php 0.60-1+deb10u1ubuntu1

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

References:
  https://usn.ubuntu.com/4539-1
CVE-2020-11728

Package Information:
  https://launchpad.net/ubuntu/+source/awl/0.60-1+deb10u1ubuntu1