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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1879
                      USN-4970-1: GUPnP vulnerability
                                2 June 2021

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

Product:           GUPnP
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Modify Arbitrary Files         -- Remote with User Interaction
                   Provide Misleading Information -- Remote with User Interaction
                   Access Confidential Data       -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-33516  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-4970-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running GUPnP check for an updated version of the software for their
         operating system.

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USN-4970-1: GUPnP vulnerability
01 June 2021

GUPnP could allow unintended access to network services.
Releases

  o Ubuntu 21.04
  o Ubuntu 20.10
  o Ubuntu 20.04 LTS

Packages

  o gupnp - framework for creating UPnP devices and control points

Details

It was discovered that GUPnP incorrectly filtered local requests. If a user
were tricked into visiting a malicious website, a remote attacker could
possibly use this issue to perform actions against local UPnP services such
as obtaining or altering sensitive information.

Update instructions

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

Ubuntu 21.04

  o libgupnp-1.2-0 - 1.2.4-1ubuntu0.21.04.1

Ubuntu 20.10

  o libgupnp-1.2-0 - 1.2.4-1ubuntu0.20.10.1

Ubuntu 20.04

  o libgupnp-1.2-0 - 1.2.3-0ubuntu0.20.04.2

After a standard system update you need to reboot your computer to make all
the necessary changes.

References

  o CVE-2021-33516

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===========================================================================
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The University of Queensland
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