Red Hat Security Advisory: firefox security update

CVE-2016-1521 — graphite2: Out-of-bound read vulnerability triggered by crafted fonts CVE-2016-1522 — graphite2: Null pointer dereference and out-of-bounds access vulnerabilities CVE-2016-1523 — graphite2: Heap-based buffer overflow in context item handling functionality CVE-2016-1969 — mozilla: out-of-bounds write with malicious font in graphite2 (MFSA 2016-38)