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USN-2736-1: Spice vulnerability

8 September 2015

Spice could be made to crash or run programs.

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Releases

Packages

  • spice - SPICE protocol client and server library

Details

Frediano Ziglio discovered that Spice incorrectly handled monitor configs.
A malicious guest could use this issue to cause a denial of service, or
possibly execute arbitrary code on the host as the user running the QEMU
process. In the default installation, when QEMU is used with libvirt,
attackers would be isolated by the libvirt AppArmor profile.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 15.04
Ubuntu 14.04

After a standard system update you need to restart all QEMU virtual
machines using Spice to make the necessary changes.

References

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Further reading