A Collabtive security update has been released for Ubuntu 16.04 LTS.

USN-4590-1: Collabtive vulnerability

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Ubuntu Security Notice USN-4590-1
October 19, 2020

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

- Ubuntu 16.04 LTS

Summary:

Collabtive could be made to run programs if it received
specially crafted network traffic from an authenticated user.

Software Description:
- collabtive: Web-based project management software

Details:

It was discovered that Collabtive did not properly validate avatar image
file uploads. An authenticated user could exploit this with a crafted file
to cause Collabtive to execute arbitrary code. (CVE-2015-0258)

Update instructions:

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

Ubuntu 16.04 LTS:
collabtive 2.0+dfsg-6ubuntu1.1

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

References:
  https://usn.ubuntu.com/4590-1
CVE-2015-0258

Package Information:
  https://launchpad.net/ubuntu/+source/collabtive/2.0+dfsg-6ubuntu1.1