The MITRE CVE dictionary describes this issue as:
The security_context_to_sid_core function in security/selinux/ss/services.c in the Linux kernel before 3.13.4 allows local users to cause a denial of service (system crash) by leveraging the CAP_MAC_ADMIN capability to set a zero-length security context.
Find out more about CVE-2014-1874 from the
MITRE CVE dictionary dictionary and
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5.