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Ubuntu: Security update for QEMU

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.

Updated packages are available from security.ubuntu.com.

==========================================================================
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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