Ubuntu Security Notice 1590-1 - 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.
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Ubuntu Security Notice USN-1590-1
October 02, 2012
qemu-kvm vulnerability
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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