[USN-3907-1] WALinuxAgent vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3907-1
March 12, 2019

walinuxagent vulnerability
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

WALinuxAgent could be made to expose sensitive information.

Software Description:
- walinuxagent: Windows Azure Linux Agent

Details:

It was discovered that WALinuxAgent created swap files with incorrect
permissions. A local attacker could possibly use this issue to obtain
sensitive information from the swap file.

Update instructions:

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

Ubuntu 18.10:
  walinuxagent                    2.2.32-0ubuntu1~18.10.2

Ubuntu 18.04 LTS:
  walinuxagent                    2.2.32-0ubuntu1~18.04.2

Ubuntu 16.04 LTS:
  walinuxagent                    2.2.32-0ubuntu1~16.04.2

Ubuntu 14.04 LTS:
  walinuxagent                    2.2.32-0ubuntu1~14.04.2

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

References:
  https://usn.ubuntu.com/usn/usn-3907-1
  CVE-2019-0804

Package Information:
  https://launchpad.net/ubuntu/+source/walinuxagent/2.2.32-0ubuntu1~18.10.2
  https://launchpad.net/ubuntu/+source/walinuxagent/2.2.32-0ubuntu1~18.04.2
  https://launchpad.net/ubuntu/+source/walinuxagent/2.2.32-0ubuntu1~16.04.2
  https://launchpad.net/ubuntu/+source/walinuxagent/2.2.32-0ubuntu1~14.04.2

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