USN-1641-1: OpenStack Keystone vulnerabilities

Releases

• Ubuntu 12.10
• Ubuntu 12.04

Packages

• keystone - OpenStack identity service

Details

Vijaya Erukala discovered that Keystone did not properly invalidate
EC2-style credentials such that if credentials were removed from a tenant,
an authenticated and authorized user using those credentials may still be
allowed access beyond the account owner's expectations. (CVE-2012-5571)

It was discovered that Keystone did not properly implement token
expiration. A remote attacker could use this to continue to access an
account that is disabled or has a changed password. This issue was
previously fixed as CVE-2012-3426 but was reintroduced in Ubuntu 12.10.
(CVE-2012-5563)

Update instructions

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

Ubuntu 12.10

• python-keystone - 2012.2-0ubuntu1.2

Ubuntu 12.04

• python-keystone - 2012.1+stable~20120824-a16a0ab9-0ubuntu2.3

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

References

• CVE-2012-5563
• CVE-2012-5571