Denial Of Service (DoS)

Red Hat Certificate System (RHCS) is an enterprise software system designed to manage enterprise Public Key Infrastructure (PKI) deployments. Multiple cross-site scripting flaws were discovered in the Red Hat Certificate System. An attacker could use these flaws to perform a cross-site scripting (XSS) attack against victims using Certificate System’s web interface. (CVE-2012-4543) Multiple denial of service flaws were found in the Red Hat Certificate System token processing. A Certificate System user could use these flaws to crash the Apache httpd web server child process, possibly interrupting the processing of other users’ requests. (CVE-2012-4555, CVE-2012-4556) Red Hat would like to thank Patrick Raspante and Ryan Millay of GDC4S for reporting the CVE-2012-4555 and CVE-2012-4556 issues. All users of Red Hat Certificate System are advised to upgrade to these updated packages, which correct these issues. After installing this update, all Red Hat Certificate System subsystems must be restarted (“/etc/init.d /[instance-name] restart”) for the update to take effect.