Malware Devil

Wednesday, August 5, 2020

ESB-2020.2674 – [UNIX/Linux][Ubuntu] libvirt: Increased privileges – Existing account

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2674
                     USN-4452-1: libvirt vulnerability
                               5 August 2020

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

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

Product:           libvirt
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-15708  

Original Bulletin: 
   https://usn.ubuntu.com/4452-1/

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

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USN-4452-1: libvirt vulnerability
04 August 2020

libvirt could be made to run programs as an administrator.
Releases

  o Ubuntu 20.04 LTS

Packages

  o libvirt - Libvirt virtualization toolkit

Details

Trent Shea discovered that the libvirt package set incorrect permissions on
the UNIX domain socket. A local attacker could use this issue to access
libvirt and escalate privileges.

Update instructions

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

Ubuntu 20.04

  o libvirt-daemon - 6.0.0-0ubuntu8.3
  o libvirt-daemon-system - 6.0.0-0ubuntu8.3
  o libvirt0 - 6.0.0-0ubuntu8.3

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

References

  o CVE-2020-15708

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

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
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        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.
===========================================================================
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