-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2299
              USN-4037-1: policykit-desktop-privileges update
                               26 June 2019

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

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

Product:           policykit-desktop-privileges
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Overwrite Arbitrary Files -- Existing Account
Resolution:        Patch/Upgrade

Original Bulletin: 
   https://usn.ubuntu.com/4037-1/

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4037-1: policykit-desktop-privileges update
25 June 2019

policykit-desktop-privileges update
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 19.04
  o Ubuntu 18.10
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS

Summary

A security improvement has been made to policykit-desktop-privileges.

Software Description

  o policykit-desktop-privileges - run common desktop actions without password

Details

The policykit-desktop-privileges Startup Disk Creator policy allowed
administrative users to overwrite disks. As a security improvement, this
operation now requires authentication.

Update instructions

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

Ubuntu 19.04
    policykit-desktop-privileges - 0.20ubuntu19.04.1
Ubuntu 18.10
    policykit-desktop-privileges - 0.20ubuntu18.10.1
Ubuntu 18.04 LTS
    policykit-desktop-privileges - 0.20ubuntu18.04.1
Ubuntu 16.04 LTS
    policykit-desktop-privileges - 0.20ubuntu16.04.1

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o LP: 1832337

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQIVAwUBXRLDtmaOgq3Tt24GAQhcUA//bMASEFhEmeAb1gYFBPX2DqBDgXsAv2hW
905YzmKmZtQA0/v0eK4CN0p6lxh65LwnkRd7fXUr6vDfvyZsKG0qUISE+ee0GMmH
+CVKA52ngtDiwXThEunkIXp6fMGNIEvd2FXW9TACilVpzBnfHgqeL495OnwSKkuW
yLq/n+M+dY3MXwcdxufxNtlwm9z+0Jh/TI3hXdZKs/kaDPkEheH5R4IKoU10RLtk
L3ncuK9xtQTC9zGzvZXIwYJJlEkFwK0BCLR7Lao14KCTJuImWkbENF5ZoUM8d/HW
TCy2PMWRPEXIsQA2cDp63JZmwPw18NNBusEUtwI0AEgdzTqoMviIKsDEqT2hFs8g
ujV2xYFhii0krM/0+SNRlH/HgPVd+xXCsclxiLkoueIz3De554w544VTU5BVG4H7
IlCtc9nz97bEJyMwMlfEh9Eq3hW0OGceGk/hLbwhNIpubUaCr9A61aVfLXSgozrr
/iXekhmQpiLlF5E6LhG5fSl2TW6w8gfoeNOAZrJmtrZmWBiEsndjIhqDH/h/qCki
Jby4rT9uhe2q8O5f+/caVZjWy/DzLj+oMLU3azJZttU+agZdQg5LaRDlMnglglyS
AJYJFEmHCy0pfkTjv6/5n3Q4lqnxVnYIUrgqxMypuLN7hHtdaub7+MQx9E4tQthH
wZ7ZvMaS91g=
=V9c5
-----END PGP SIGNATURE-----