Spice could be made to crash or run programs if it received specially crafted network traffic.
Frediano Ziglio discovered that Spice incorrectly handled certain client messages. An attacker could possibly use this to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code.
23 May 2018
A security issue affects these releases of Ubuntu and its derivatives:
Spice could be made to crash or run programs if it received specially crafted network traffic.
Frediano Ziglio discovered that Spice incorrectly handled certain client messages. An attacker could possibly use this to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon