Ubuntu 14.04 LTS: USN-2182-1 Critical QEMU Denial Of Service Risk

ubuntu

April 28, 2014

Several security issues were fixed in QEMU.

Summary

Several security issues were fixed in QEMU.

Software Description:

- qemu: Machine emulator and virtualizer

- qemu-kvm: Machine emulator and virtualizer

Details:

Michael S. Tsirkin discovered that QEMU incorrectly handled vmxnet3

devices. A local guest could possibly use this issue to cause a denial of

service, or possibly execute arbitrary code on the host. This issue only

applied to Ubuntu 13.10 and Ubuntu 14.04 LTS. (CVE-2013-4544)

Michael S. Tsirkin discovered that QEMU incorrectly handled virtio-net

MAC addresses. A local guest could possibly use this issue to cause a

denial of service, or possibly execute arbitrary code on the host.

(CVE-2014-0150)

Benoît Canet discovered that QEMU incorrectly handled SMART self-tests. A

local guest could possibly use this issue to cause a denial of service, or

possibly execute arbitrary code on the host. (CVE-2014-2894)

Topics Covered

security advisory denial of service critical ubuntu execution issue qemu

Update Instructions

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

Ubuntu 14.04 LTS:
  qemu-system                     2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-aarch64             2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-arm                 2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-mips                2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-misc                2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-ppc                 2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-sparc               2.0.0~rc1+dfsg-0ubuntu3.1
  qemu-system-x86                 2.0.0~rc1+dfsg-0ubuntu3.1

Ubuntu 13.10:
  qemu-system                     1.5.0+dfsg-3ubuntu5.4
  qemu-system-arm                 1.5.0+dfsg-3ubuntu5.4
  qemu-system-mips                1.5.0+dfsg-3ubuntu5.4
  qemu-system-misc                1.5.0+dfsg-3ubuntu5.4
  qemu-system-ppc                 1.5.0+dfsg-3ubuntu5.4
  qemu-system-sparc               1.5.0+dfsg-3ubuntu5.4
  qemu-system-x86                 1.5.0+dfsg-3ubuntu5.4

Ubuntu 12.10:
  qemu-kvm                        1.2.0+noroms-0ubuntu2.12.10.7

Ubuntu 12.04 LTS:
  qemu-kvm                        1.0+noroms-0ubuntu14.14

Ubuntu 10.04 LTS:
  qemu-kvm                        0.12.3+noroms-0ubuntu9.22

After a standard system update you need to reboot your computer to make all
the necessary changes.