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Ubuntu: 12.04 LTS & 12.10 Advisory: Keystone DoS and Crash Risks

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Calendar Grey February 21, 2013
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Uncover security flaws in OpenStack Keystone, focusing on potential crash threats and data leaks alongside Ubuntu patch releases.
Keystone could be made to crash or expose sensitive information over the network.

Summary

Keystone could be made to crash or expose sensitive information over the

network.

Software Description:

- keystone: OpenStack identity service

Details:

Nathanael Burton discovered that Keystone did not properly verify disabled

users. An authenticated but disabled user would continue to have access

rights that were removed. (CVE-2013-0282)

Jonathan Murray discovered that Keystone would allow XML entity processing.

A remote unauthenticated attacker could exploit this to cause a denial of

service via resource exhaustion. Authenticated users could also use this to

view arbitrary files on the Keystone server. (CVE-2013-1664, CVE-2013-1665)

Topics%20covered

Topics Covered

security advisory security issue DoS Ubuntu update instructions sensitive information keystone

Update Instructions

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

Ubuntu 12.10:
  python-keystone                 2012.2.1-0ubuntu1.2

Ubuntu 12.04 LTS:
  python-keystone                 2012.1+stable~20120824-a16a0ab9-0ubuntu2.5

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

References

https://ubuntu.com/security/notices/USN-1730-1

CVE-2013-0282, CVE-2013-1664, CVE-2013-1665

Severity
critical
Lowest
Low
Medium
High
Critical

=========================================================================Ubuntu Security Notice USN-1730-1

Topics%20covered

Topics Covered

security advisory security issue DoS Ubuntu update instructions sensitive information keystone

Package Information

https://launchpad.net/ubuntu/+source/keystone/2012.2.1-0ubuntu1.2
https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu2.5

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