The ImageInputType::ensurePrimaryContent function in WebKit/Source/core/html/forms/ImageInputType.cpp in Blink, as used in Google Chrome before 49.0.2623.87, does not properly maintain the user agent shadow DOM, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that leverage “type confusion.”
googlechromereleases.blogspot.com/2016/03/stable-channel-update_8.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00066.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00067.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00073.html
www.debian.org/security/2016/dsa-3513
www.securityfocus.com/bid/84224
www.securitytracker.com/id/1035259
www.ubuntu.com/usn/USN-2920-1
code.google.com/p/chromium/issues/detail?id=589838
codereview.chromium.org/1732753004