USN-2182-1: QEMU vulnerabilities

28 April 2014

qemu, qemu-kvm vulnerabilities

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

  • Ubuntu 14.04 LTS
  • Ubuntu 13.10
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

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)

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References