[USN-1522-1] QEMU vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Thu Aug 2 12:22:49 UTC 2012


==========================================================================
Ubuntu Security Notice USN-1522-1
August 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 overwrite files as the administrator, or expose
sensitive information.

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

Details:

It was discovered that QEMU incorrectly handled temporary files when
creating a snapshot. A local attacker could use this flaw to possibly
overwrite files with root privilege, or obtain sensitive information from
the guest.

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-0ubuntu14.1

Ubuntu 11.10:
  qemu-kvm                        0.14.1+noroms-0ubuntu6.4

Ubuntu 11.04:
  qemu-kvm                        0.14.0+noroms-0ubuntu4.6

Ubuntu 10.04 LTS:
  qemu-kvm                        0.12.3+noroms-0ubuntu9.19

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1522-1
  CVE-2012-2652

Package Information:
  https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.1
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.14.1+noroms-0ubuntu6.4
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.14.0+noroms-0ubuntu4.6
  https://launchpad.net/ubuntu/+source/qemu-kvm/0.12.3+noroms-0ubuntu9.19


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