Red Hat Security Advisory 2014-1997-01 – A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system. A flaw was found in the way the Linux kernel’s SCTP implementation handled malformed or duplicate Address Configuration Change Chunks. A remote attacker could use either of these flaws to crash the system. A flaw was found in the way the Linux kernel’s SCTP implementation handled the association’s output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service.