Use-after-free vulnerability in the FormAssociatedElement::formRemovedFromTree function in core/html/FormAssociatedElement.cpp in Blink, as used in Google Chrome before 33.0.1750.146, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving FORM elements, as demonstrated by use of the speech-recognition feature.
Exploitability
AV:NAC:LAu:NImpact
C:PI:PA:P7.5/AV:N/AC:L/Au:N/C:P/I:P/A:P