USN-3014-1: Spice vulnerabilities

21 June 2016

spice vulnerabilities

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

  • Ubuntu 16.04 LTS
  • Ubuntu 15.10
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Spice.

Software Description

  • spice - SPICE protocol client and server library

Details

Jing Zhao discovered that the Spice smartcard support incorrectly handled memory. A remote attacker could use this issue to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-0749)

Frediano Ziglio discovered that Spice incorrectly handled certain primary surface parameters. A malicious guest operating system could potentially exploit this issue to escape virtualization. (CVE-2016-2150)

Update instructions

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

Ubuntu 16.04 LTS
libspice-server1 - 0.12.6-4ubuntu0.1
Ubuntu 15.10
libspice-server1 - 0.12.5-1.1ubuntu2.1
Ubuntu 14.04 LTS
libspice-server1 - 0.12.4-0nocelt2ubuntu1.3

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

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

References