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.