1. Ubuntu Security Notices
  2. USN-1177-1

USN-1177-1: QEMU vulnerability

Publication date

27 July 2011

Overview

QEMU could be made to run with adminstrator group privileges under certain circumstances.

Releases

Packages

  • qemu-kvm - Machine emulator and virtualizer

Details

Andrew Griffiths discovered that QEMU did not correctly drop privileges
when using the ‘runas’ argument. Under certain circumstances a local
attacker could exploit this to escalate privileges.

Andrew Griffiths discovered that QEMU did not correctly drop privileges
when using the ‘runas’ argument. Under certain circumstances a local
attacker could exploit this to escalate privileges.

Update instructions

In general, a standard system update will 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
11.04 natty qemu-kvm –  0.14.0+noroms-0ubuntu4.4
10.10 maverick qemu-kvm –  0.12.5+noroms-0ubuntu7.10
qemu-kvm-extras –  0.12.5+noroms-0ubuntu7.10
qemu-kvm-extras-static –  0.12.5+noroms-0ubuntu7.10
10.04 lucid qemu-kvm –  0.12.3+noroms-0ubuntu9.15
qemu-kvm-extras –  0.12.3+noroms-0ubuntu9.15
qemu-kvm-extras-static –  0.12.3+noroms-0ubuntu9.15

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References

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