Multiple unspecified vulnerabilities in Mozilla Firefox 3.x before 3.0.2 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to the layout engine and (1) a zero value of the \this\ variable in the nsContentList::Item function; (2) interaction of the indic IME extension a Hindi language selection and the \g\ character; and (3) interaction of the nsFrameList::SortByContentOrder function with a certain insufficient protection of inline frames.