Multiple use-after-free vulnerabilities in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 5.0.375.127, and webkitgtk before 1.2.6, allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to improper handling of MIME types by plug-ins.

Google Chrome before 5.0.375.127 and webkitgtk before 1.2.6 do not properly support the Ruby language, which allows attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors.

Google Chrome before 5.0.375.127, and webkitgtk before 1.2.6, does not properly implement the history feature, which might allow remote attackers to spoof the address bar via unspecified vectors.

Google Chrome before 5.0.375.127, and webkitgtk before 1.2.5, does not properly handle SVG documents, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors related to state changes when using DeleteButtonController.

The text-editing implementation in Google Chrome before 5.0.375.127, and webkitgtk before 1.2.6, does not check a node type before performing a cast, which has unspecified impact and attack vectors related to (1) DeleteSelectionCommand.cpp, (2) InsertLineBreakCommand.cpp, or (3) InsertParagraphSeparatorCommand.cpp in WebCore/editing/.

Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets/WebSocketHandshake.cpp in WebCore in WebKit before r56380, as used in Qt and other products, allows remote websockets servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an upgrade header that is long and invalid.

WebKit before r50173, as used in Google Chrome before 3.0.195.32, allows remote attackers to cause a denial of service (CPU consumption) via a web page that calls the JavaScript setInterval method, which triggers an incompatibility between the WTF::currentTime and base::Time functions.

xml/XMLHttpRequest.cpp in WebCore in WebKit before r38566 does not properly restrict access from web pages to the (1) Set-Cookie and (2) Set-Cookie2 HTTP response headers, which allows remote attackers to obtain sensitive information from cookies via XMLHttpRequest calls, related to the HTTPOnly protection mechanism.

JavaScriptCore in WebKit on Apple iPhone before 2.0 and iPod touch before 2.0 does not properly perform runtime garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors that trigger memory corruption, a different vulnerability than CVE-2008-2317.