USN-3014-1: Spice vulnerabilities

USN-3014-1: Spice vulnerabilities

Ubuntu Security Notice USN-3014-1

21st 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 version:

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

CVE-2016-0749,

CVE-2016-2150

Source: USN-3014-1: Spice vulnerabilities