On June 19, Canonical published details about OpenStack Swift vulnerabilities for its Ubuntu 13.04, Ubuntu 12.10, and Ubuntu 12.04 LTS operating systems.According to Canonical, multiple security issues have been fixed in OpenStack Swift.
It has been discovered that Swift did not safely generate XML. An attacker could have potentially craft an account name to generate arbitrary XML responses, in order to trigger vulnerabilities in the software parsing Swift's XML.
For a more detailed description of the security problems, you can visit Canonical's security notification.
Users can simply fix the security flaws by upgrading the operating systems to the latest python-swift package, specific to each distribution.
A normal system update, executed with the Update Manager, will implement all the necessary changes. A complete Swift restart is necessary.