ESB-2017.1778 - [Ubuntu] libspice-server1: Execute arbitrary code/commands - Existing account 2017-07-20

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

                               ESB-2017.1778
                            Spice vulnerability
                               20 July 2017

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

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

Product:           libspice-server1
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7506  

Reference:         ESB-2017.1726
                   ESB-2017.1725

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3355-1

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Ubuntu Security Notice USN-3355-1
July 19, 2017

spice vulnerability
==========================================================================

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

- - Ubuntu 17.04
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Spice could be made to crash or run programs if it received specially
crafted network traffic.

Software Description:
- - spice: SPICE protocol client and server library

Details:

Frediano Ziglio discovered that Spice incorrectly handled certain invalid
monitor configurations. A remote attacker could use this issue to cause
Spice to crash, resulting in a denial of service, or possibly execute
arbitrary code.

Update instructions:

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

Ubuntu 17.04:
  libspice-server1                0.12.8-2ubuntu1.1

Ubuntu 16.04 LTS:
  libspice-server1                0.12.6-4ubuntu0.3

Ubuntu 14.04 LTS:
  libspice-server1                0.12.4-0nocelt2ubuntu1.5

After a standard system update you need to restart qemu guests to make
all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3355-1
  CVE-2017-7506

Package Information:
  https://launchpad.net/ubuntu/+source/spice/0.12.8-2ubuntu1.1
  https://launchpad.net/ubuntu/+source/spice/0.12.6-4ubuntu0.3
  https://launchpad.net/ubuntu/+source/spice/0.12.4-0nocelt2ubuntu1.5

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