HTCondor is a specialized workload management system for compute-intensive jobs. It provides a job queuing mechanism, scheduling policy, priority scheme, and resource monitoring and management.
The HTCondor scheduler can optionally notify a user of completed jobs by sending an email. Due to the way the daemon sent the email message, authenticated users able to submit jobs could execute arbitrary code with the privileges of the condor user. (CVE-2014-8126)
This issue was discovered by Florian Weimer of Red Hat Product Security.
All Red Hat Enterprise MRG 2.5 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. HTCondor must be restarted for the update to take effect.