The mozilla::net::IsValidReferrerPolicy function in Mozilla Firefox before 49.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a Content Security Policy (CSP) referrer directive with zero values.
49.0+build4-0ubuntu0.14.04.149.0+build4-0ubuntu0.16.04.1Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:HCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H