[USN-1590-1] QEMU vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Tue Oct 2 14:15:20 UTC 2012


==========================================================================
Ubuntu Security Notice USN-1590-1
October 02, 2012

qemu-kvm vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

QEMU could be made to crash or run programs.

Software Description:
- qemu-kvm: Machine emulator and virtualizer

Details:

It was discovered that QEMU incorrectly handled certain VT100 escape
sequences. A guest user with access to an emulated character device could
use this flaw to cause QEMU to crash, or possibly execute arbitrary code on
the host.

Update instructions:

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

Ubuntu 12.04 LTS:
  qemu-kvm                        1.0+noroms-0ubuntu14.2

Ubuntu 11.10:
  qemu-kvm                        0.14.1+noroms-0ubuntu6.5

Ubuntu 11.04:
  qemu-kvm                        0.14.0+noroms-0ubuntu4.7

Ubuntu 10.04 LTS:
  qemu-kvm                        0.12.3+noroms-0ubuntu9.20

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

References:
  http://www.ubuntu.com/usn/usn-1590-1
  CVE-2012-3515

Package Information:
  https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.2
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.14.1+noroms-0ubuntu6.5
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.14.0+noroms-0ubuntu4.7
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.12.3+noroms-0ubuntu9.20


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