1. Ubuntu Security Notices
  2. USN-2342-1

USN-2342-1: QEMU vulnerabilities

Publication date

8 September 2014

Overview

Several security issues were fixed in QEMU.

Releases

Packages

  • qemu - Machine emulator and virtualizer
  • qemu-kvm - Machine emulator and virtualizer

Details

Michael S. Tsirkin, Anthony Liguori, and Michael Roth discovered multiple
issues with QEMU state loading after migration. An attacker able to modify
the state data could use these issues to cause a denial of service, or
possibly execute arbitrary code. (CVE-2013-4148, CVE-2013-4149,
CVE-2013-4150, CVE-2013-4151, CVE-2013-4526, CVE-2013-4527, CVE-2013-4529,
CVE-2013-4530, CVE-2013-4531, CVE-2013-4532, CVE-2013-4533, CVE-2013-4534,
CVE-2013-4535,

Michael S. Tsirkin, Anthony Liguori, and Michael Roth discovered multiple
issues with QEMU state loading after migration. An attacker able to modify
the state data could use these issues to cause a denial of service, or
possibly execute arbitrary code. (CVE-2013-4148, CVE-2013-4149,
CVE-2013-4150, CVE-2013-4151, CVE-2013-4526, CVE-2013-4527, CVE-2013-4529,
CVE-2013-4530, CVE-2013-4531, CVE-2013-4532, CVE-2013-4533, CVE-2013-4534,
CVE-2013-4535, CVE-2013-4536, CVE-2013-4537, CVE-2013-4538, CVE-2013-4539,
CVE-2013-4540, CVE-2013-4541, CVE-2013-4542, CVE-2013-6399, CVE-2014-0182,
CVE-2014-3461)

Kevin Wolf, Stefan Hajnoczi, Fam Zheng, Jeff Cody, Stefan Hajnoczi, and
others discovered multiple issues in the QEMU block drivers. An attacker
able to modify disk images could use these issues to cause a denial of
service, or possibly execute arbitrary code. (CVE-2014-0142, CVE-2014-0143,
CVE-2014-0144, CVE-2014-0145, CVE-2014-0146, CVE-2014-0147, CVE-2014-0222,
CVE-2014-0223)

It was discovered that QEMU incorrectly handled certain PCIe bus hotplug
operations. A malicious guest could use this issue to crash the QEMU host,
resulting in a denial of service. (CVE-2014-3471)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty qemu-system –  2.0.0+dfsg-2ubuntu1.3
qemu-system-aarch64 –  2.0.0+dfsg-2ubuntu1.3
qemu-system-arm –  2.0.0+dfsg-2ubuntu1.3
qemu-system-mips –  2.0.0+dfsg-2ubuntu1.3
qemu-system-misc –  2.0.0+dfsg-2ubuntu1.3
qemu-system-ppc –  2.0.0+dfsg-2ubuntu1.3
qemu-system-sparc –  2.0.0+dfsg-2ubuntu1.3
qemu-system-x86 –  2.0.0+dfsg-2ubuntu1.3
12.04 precise qemu-kvm –  1.0+noroms-0ubuntu14.17
10.04 lucid qemu-kvm –  0.12.3+noroms-0ubuntu9.24

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References

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