A flaw was found in the way the ipc_rcu_putref() function in the Linux kernel's IPC implementation handled reference counter decrementing. A local, unprivileged user could use this flaw to trigger an Out of Memory (OOM) condition and, potentially, crash the system.
Find out more about CVE-2013-4483 from the
MITRE CVE dictionary dictionary and
This issue does affect Linux kernel packages as shipped with Red Hat Enterprise Linux 6. Future kernel updates for respective releases may address this issue.