Microsoft Edge Chakra ParseCatch Type Confusion (CVE-2017-11764)

A type confusion vulnerability exists in Microsoft Edge Chakra JavaScript Engine. The vulnerability is due to a lack of validation in the ParseCatch method which results in the generation on a malformed Abstract Syntax Tree AST. A remote attacker could exploit this vulnerability by enticing the...

Microsoft Edge Chakra - 'Parser::ParseCatch' Does Not Handle 'eval()' (Denial of Service)

PnodeBlockType::Regular, isPattern ? ScopeTypeCatchParamPattern : ScopeTypeCatch; ... ParseNodePtr pnodePattern = ParseDestructuredLiteraltkLET, true /isDecl/, true /topLevel/, DICForceErrorOnInitializer; ... 1. "pnodeCatchScope" is a temporary block used to create a scope, and it is not actually...

Microsoft Edge Chakra - Parser::ParseCatch Does Not Handle eval() (Denial of Service)

Microsoft Edge Chakra - Parser::ParseCatch Does Not Handle eval Denial of Service PnodeBlockType::Regular, isPattern ? ScopeTypeCatchParamPattern : ScopeTypeCatch; ... ParseNodePtr pnodePattern = ParseDestructuredLiteraltkLET, true /isDecl/, true /topLevel/, DICForceErrorOnInitializer; ... 1...