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Ubuntu Security Notice USN-1439-1
May 07, 2012

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

- Ubuntu 12.04 LTS

Summary:

Horizon could be made to expose sensitive information over the network.

Software Description:
- horizon: Web interface for OpenStack cloud infrastructure

Details:

Matthias Weckbecker discovered a cross-site scripting (XSS) vulnerability
in Horizon via the log viewer refrash mechanism. If a user were tricked
into viewing a specially crafted log message, a remote attacker could
exploit this to modify the contents or steal confidential data within the
same domain. (CVE-2012-2094)

Thomas Biege discovered a session fixation vulnerability in Horizon. An
attacker could exploit this to potentially allow access to unauthorized
information and capabilities. (CVE-2012-2144)

Update instructions:

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

Ubuntu 12.04 LTS:
  python-django-horizon           2012.1-0ubuntu8.1

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1439-1
  CVE-2012-2094, CVE-2012-2144

Package Information:
  https://launchpad.net/ubuntu/+source/horizon/2012.1-0ubuntu8.1