ESB-2019.0787 - [Ubuntu] walinuxagent: Access confidential data - Existing account 2019-03-13

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0787
                        WALinuxAgent vulnerability
                               13 March 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           walinuxagent
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0804  

Reference:         ASB-2019.0070

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3907-1

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==========================================================================
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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