Document OpenEXR 2.2.0 vulnerabilities

Reported by: Brandon Perry
Security: 803879e9-4195-11e7-9b08-080027ef73ec
Security: CVE-2017-9116
Security: CVE-2017-9115
Security: CVE-2017-9114
Security: CVE-2017-9113
Security: CVE-2017-9112
Security: CVE-2017-9111
Security: CVE-2017-9110