USN-3014-1: Spice vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 15.10
• Ubuntu 14.04 ESM

Packages

• 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

• libspice-server1 - 0.12.6-4ubuntu0.1

Ubuntu 15.10

• libspice-server1 - 0.12.5-1.1ubuntu2.1

Ubuntu 14.04

• libspice-server1 - 0.12.4-0nocelt2ubuntu1.3

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

References

• CVE-2016-0749
• CVE-2016-2150