Chrome V8 JIT - 'GetSpecializationContext' Type Confusion

PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i 10000; i++ opt; What happened: 1. The LdaNamedProperty operation "opt.x" was...

Chrome V8 JIT - GetSpecializationContext Type Confusion

Chrome V8 JIT - GetSpecializationContext Type Confusion PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i 10000; i++ opt; What...

Microsoft Edge Chakra TryUndeleteProperty Incorrect Usage

Microsoft Edge: Chakra: Incorrect usage of TryUndeleteProperty CVE-2017-8635 Chakra implemented the reuse of deleted properties of an unordered dictionary object with the following code. bool SimpleDictionaryUnorderedTypeHandler::TryReuseDeletedPropertyIndex DynamicObject const object,...

Chrome Universal XSS via ContainerNode::parserInsertBefore (CVE-2015-6755)

VULNERABILITY DETAILS From /WebKit/Source/core/dom/ContainerNode.cpp: void ContainerNode::parserInsertBeforePassRefPtrWillBeRawPtr newChild, Node& nextChild ... while RefPtrWillBeRawPtr parent = newChild-parentNode parent-parserRemoveChildnewChild; if document != newChild-document document...

Chrome Universal XSS via reentrancy in FrameLoader::startLoad (CVE-2016-1697)

VULNERABILITY DETAILS From /thirdparty/WebKit/Source/core/loader/FrameLoader.cpp: void FrameLoader::startLoad... ASSERTclient-hasWebView; if mframe-document-pageDismissalEventBeingDispatched != Document::NoDismissal return; ... mframe-document-cancelParsing;...

C99Shell 1.0 Pre-Release build 16 (Web Shell) - ch99.php Cross-Site Scripting

C99Shell 1.0 Pre-Release build 16 Web Shell - ch99.php Cross-Site Scripting source: https://www.securityfocus.com/bid/40134/info C99Shell is prone to a cross-site scripting vulnerability because the application fails to sufficiently sanitize user-supplied input. An attacker may leverage this issu...