USN-2034-1: OpenStack Keystone vulnerability

Releases

• Ubuntu 13.10
• Ubuntu 13.04
• Ubuntu 12.10

Packages

• keystone - OpenStack identity service

Details

Brant Knudson discovered a logic error in the LDAP backend in Keystone
where removing a role on a tenant for a user who does not have that role
would instead add the role to the user. An authenticated user could use
this to gain privileges. Ubuntu is not configured to use the LDAP Keystone
backend by default.

Update instructions

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

Ubuntu 13.10

• python-keystone - 1:2013.2-0ubuntu1.1

Ubuntu 13.04

• python-keystone - 1:2013.1.4-0ubuntu1.1

Ubuntu 12.10

• python-keystone - 2012.2.4-0ubuntu3.3

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

References

• CVE-2013-4477