WebKit WebCore::InputType::element Use-After-Free

WebKit: use-after-free in WebCore::InputType::element CVE-2017-7042 There is a use-after-free security vulnerability in WebKit. The vulnerability was confirmed on ASan build of WebKit nightly. PoC: ================================================================= var runcount = 0; function go...

WebKit JSC - 'arrayProtoFuncSplice' Uninitialized Memory Reference

lexicalGlobalObject-arrayStructureForIndexingTypeDuringAllocationArrayWithUndecided, actualDeleteCount; if UNLIKELY!result throwOutOfMemoryErrorexec, scope; return encodedJSValue; // The result can have an ArrayStorage indexing type if we're having a bad time. bool isArrayStorage =...

WebKit JSC - 'DFG::ByteCodeParser::flush(InlineStackEntry* inlineStackEntry)' Incorrect Scope Register Handling

scopeRegister; mcodeBlock| instead of |mcodeBlock|. But it doesn't. As a result, the scope register of |inlineStackEntry-mcodeBlock| may have an incorrect offset in the stack layout phase. PoC: -- function f function eval'1'; f; ; throw 1; f;...

WebKit JSC - 'JSArray::appendMemcpy' Uninitialized Memory Copy

indexingType; if type == ArrayWithUndecided && copyType != NonArray if copyType == ArrayWithInt32 convertUndecidedToInt32vm; else if copyType == ArrayWithDouble convertUndecidedToDoublevm; else if copyType == ArrayWithContiguous convertUndecidedToContiguousvm; else ASSERTcopyType ==...

WebKit JSC - JSArray::appendMemcpy Uninitialized Memory Copy

WebKit JSC - JSArray::appendMemcpy Uninitialized Memory Copy indexingType; if type == ArrayWithUndecided && copyType != NonArray if copyType == ArrayWithInt32 convertUndecidedToInt32vm; else if copyType == ArrayWithDouble convertUndecidedToDoublevm; else if copyType == ArrayWithContiguous...

WebKit JSC Incorrect Scope Register Handling

WebKit: JSC: Incorrect scope register handling in DFG::ByteCodeParser::flushInlineStackEntry inlineStackEntry CVE-2017-7018 Here's a snippet of DFG::ByteCodeParser::flushInlineStackEntry inlineStackEntry. void flushInlineStackEntry inlineStackEntry ... if mgraph.needsScopeRegister...

WebKit JSC JSArray::appendMemcpy Uninitialized Memory Copy Vulnerability

WebKit suffers from a JSC JSArray::appendMemcpy uninitialized memory copy vulnerability. WebKit: JSC: JSArray::appendMemcpy uninitialized memory copy CVE-2017-7064 WebKit: JSC: JSArray::appendMemcpy uninitialized memory copy Here's a snippet of JSArray::appendMemcpy. bool...

WebKit JSC ObjectPatternNode::appendEntry Use-After-Free Vulnerability

WebKit JSC suffers from an ObjectPatternNode::appendEntry stack use-after-free. WebKit: JSC: Stack-Use-After-Free in ObjectPatternNode::appendEntry Here's a snippet of ObjectPatternNode::appendEntry. void appendEntryconst JSTokenLocation&, ExpressionNode propertyExpression, DestructuringPatternNo...

WebKit JSC arrayProtoFuncSplice Uninitiailzed Memory Reference Vulnerability

WebKit JSC suffers from an uninitialized memory reference in arrayProtoFuncSplice. WebKit: JSC: uninitialized memory reference in arrayProtoFuncSplice Here's a snippet of arrayProtoFuncSplice. EncodedJSValue JSCHOSTCALL arrayProtoFuncSpliceExecState exec ... result =...

WebKit JSC - JSObject::putInlineSlow JSValue::putToPrimitive Universal Cross-Site Scripting

WebKit JSC - JSObject::putInlineSlow JSValue::putToPrimitive Universal Cross-Site Scripting let f = document.body.appendChilddocument.createElement'iframe'; let loc = f.contentWindow.location; f.onload = = let a = 1.2; a.proto.proto = f.contentWindow; a'test' = toString: function...

WebKit JSC Incorrect Scope Register Handling Vulnerability

WebKit suffers from a JSC incorrect scope register handling in DFG::ByteCodeParser::flushInlineStackEntry inlineStackEntry. WebKit: JSC: Incorrect scope register handling in DFG::ByteCodeParser::flushInlineStackEntry inlineStackEntry CVE-2017-7018 Here's a snippet of...

WebKit WebCore::Node::getFlag Use-After-Free

WebKit: use-after-free in WebCore::Node::getFlag CVE-2017-7041 There is a use-after-free security vulnerability in WebKit. The vulnerability was confirmed on ASan build of WebKit nightly. PoC note that you might need to refresh a page a couple of times to trigger the bug:...

WebKit WebCore::getCachedWrapper Use-After-Free

WebKit: use-after-free in WebCore::getCachedWrapper CVE-2017-7040 There is a use-after-free security vulnerability in WebKit. The vulnerability was confirmed on ASan build of WebKit nightly. PoC: ================================================================= function freememory var a; forvar...

Apple iTunes < 12.6.2 Multiple Vulnerabilities (credentialed check)

The version of Apple iTunes installed on the remote Windows host is prior to 12.6.2. It is, therefore, affected by multiple vulnerabilities : - Multiple out-of-bounds read errors exist in the libxml2 component due to improper handling of specially crafted XML documents. An unauthenticated, remote...

WebKit JSC - 'ArgumentsEliminationPhase::transform' Incorrect LoadVarargs Handling

op == PhantomNewArrayWithSpread || candidate-op == PhantomSpread ... if argumentCountIncludingThis limit storeArgumentCountIncludingThisargumentCountIncludingThis; // store arguments ... node-remove; node-origin.exitOK = canExit; break; Whether or not the "argumentCountIncludingThis limit"...

WebKit JSC - 'JSObject::putInlineSlow' / 'JSValue::putToPrimitive' Universal Cross-Site Scripting

let f = document.body.appendChilddocument.createElement'iframe'; let loc = f.contentWindow.location; f.onload = = let a = 1.2; a.proto.proto = f.contentWindow; a'test' = toString: function arguments.callee.caller.constructor'alertlocation'; ; ; f.src = 'data:text/html,' +...

WebKit JSC - DFG::ByteCodeParser::flush(InlineStackEntry* inlineStackEntry) Incorrect Scope Register Handling

WebKit JSC - DFG::ByteCodeParser::flushInlineStackEntry inlineStackEntry Incorrect Scope Register Handling scopeRegister; mcodeBlock| instead of |mcodeBlock|. But it doesn't. As a result, the scope register of |inlineStackEntry-mcodeBlock| may have an incorrect offset in the stack layout phase...

WebKit JSC - ObjectPatternNode::appendEntry Stack Use-After-Free

WebKit JSC - ObjectPatternNode::appendEntry Stack Use-After-Free Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1256 Here's a snippet of ObjectPatternNode::appendEntry. void appendEntryconst JSTokenLocation&, ExpressionNode propertyExpression, DestructuringPatternNode pattern,...

WebKit JSC arrayProtoFuncSplice Uninitiailzed Memory Reference

WebKit: JSC: uninitialized memory reference in arrayProtoFuncSplice Here's a snippet of arrayProtoFuncSplice. EncodedJSValue JSCHOSTCALL arrayProtoFuncSpliceExecState exec ... result = JSArray::tryCreateForInitializationPrivatevm,...

WebKit JSC JSObject::putInlineSlow / JSValue::putToPrimitive XSS Vulnerability

WebKit JSC JSObject::putInlineSlow and JSValue::putToPrimitive suffer from a universal cross site scripting vulnerability. WebKit: JSC: UXSS via JSObject::putInlineSlow and JSValue::putToPrimitive CVE-2017-7037 JSObject::putInlineSlow and JSValue::putToPrimitive use getPrototypeDirect instead of...