Chrome V8 JIT - 'AwaitedPromise' Update Bug

/ Here's a snippet of AsyncGeneratorReturn. https://cs.chromium.org/chromium/src/v8/src/builtins/builtins-async-generator-gen.cc?rcl=bcd1365cf7fac0d7897c43b377c143aae2d22f92&l=650 Node const context = ParameterDescriptor::kContext; Node const outerpromise = LoadPromiseFromAsyncGeneratorRequestreq...

Chrome V8 JIT - Arrow Function Scope Fixing Bug

/ When the parser parses the parameter list of an arrow function contaning destructuring assignments, it can't distinguish whether the assignments will be actually in the parameter list or just assignments until it meets a "=" token. So it first assigns the destructuring assignments to the outer...

Chrome V8 JIT - NodeProperties::InferReceiverMaps Type Confusion

Chrome V8 JIT - NodeProperties::InferReceiverMaps Type Confusion / https://cs.chromium.org/chromium/src/v8/src/compiler/node-properties.cc?rcl=df84e87191022bf6914f9570069908f10b303245&l=416 Here's a snippet of NodeProperties::InferReceiverMaps. case IrOpcode::kJSCreate: if IsSamereceiver, effect...

Chrome V8 JIT - 'NodeProperties::InferReceiverMaps' Type Confusion

/ https://cs.chromium.org/chromium/src/v8/src/compiler/node-properties.cc?rcl=df84e87191022bf6914f9570069908f10b303245&l=416 Here's a snippet of NodeProperties::InferReceiverMaps. case IrOpcode::kJSCreate: if IsSamereceiver, effect HeapObjectMatcher mtargetGetValueInputeffect, 0; HeapObjectMatche...

Chrome V8 JIT NodeProperties::InferReceiverMaps Type Confusion Exploit

Exploit for multiple platform in category dos / poc Chrome: V8: JIT: Type confusion in NodeProperties::InferReceiverMaps https://cs.chromium.org/chromium/src/v8/src/compiler/node-properties.cc?rcl=df84e87191022bf6914f9570069908f10b303245&l=416 Here's a snippet of NodeProperties::InferReceiverMaps...

Chrome V8 JIT NodeProperties::InferReceiverMaps Type Confusion

Chrome: V8: JIT: Type confusion in NodeProperties::InferReceiverMaps https://cs.chromium.org/chromium/src/v8/src/compiler/node-properties.cc?rcl=df84e87191022bf6914f9570069908f10b303245&l=416 Here's a snippet of NodeProperties::InferReceiverMaps. case IrOpcode::kJSCreate: if IsSamereceiver, effec...

Microsoft Chakra Typed Array JIT Optimization Use-After-Free Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Chakra. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the generation ...

PT-2018-2609

Name of the Vulnerable Software and Affected Versions Eclipse OpenJ9 version 0.11.0 libjpeg affected versions not specified Description The issue is related to insufficient input validation in the OpenJ9 JIT compiler component of the Eclipse OpenJ9 virtual machine. This can be exploited by a remo...

Chrome V8 JIT LoadElimination::ReduceTransitionElementsKind Bug

Chrome: V8: JIT: A bug in LoadElimination::ReduceTransitionElementsKind I think this commit has introduced the bug: https://chromium.googlesource.com/v8/v8.git/+/9884bc5dee488bf206655f07b8a487afef4ded9b Reduction LoadElimination::ReduceTransitionElementsKindNode node ... if...

Google Chrome V8 JIT - LoadElimination::ReduceTransitionElementsKind Type Confusion

Exploit for multiple platform in category dos / poc / I think this commit has introduced the bug: https://chromium.googlesource.com/v8/v8.git/+/9884bc5dee488bf206655f07b8a487afef4ded9b Reduction LoadElimination::ReduceTransitionElementsKindNode node ... if objectmaps.containsZoneHandleSetsourcema...

Google Chrome V8 JIT - LoadElimination::ReduceTransitionElementsKind Type Confusion

Google Chrome V8 JIT - LoadElimination::ReduceTransitionElementsKind Type Confusion / I think this commit has introduced the bug: https://chromium.googlesource.com/v8/v8.git/+/9884bc5dee488bf206655f07b8a487afef4ded9b Reduction LoadElimination::ReduceTransitionElementsKindNode node ... if...

Google Chrome V8 JIT - 'LoadElimination::ReduceTransitionElementsKind' Type Confusion

/ I think this commit has introduced the bug: https://chromium.googlesource.com/v8/v8.git/+/9884bc5dee488bf206655f07b8a487afef4ded9b Reduction LoadElimination::ReduceTransitionElementsKindNode node ... if objectmaps.containsZoneHandleSetsourcemap objectmaps.removesourcemap, zone;...

Apple Safari Math floor Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of JIT...

Apple Safari Math sqrt Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of JIT...

Apple Safari Math abs Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of JIT...

Apple Safari Spread Operator Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of JIT...

Apple Safari Loose Comparison Operator Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of...

Microsoft Edge Chakra JIT - Stack-to-Heap Copy (Incomplete Fix) Exploit

Exploit for windows platform in category dos / poc / Here's a snippet of JavascriptArray::BoxStackInstance. To fix issue 1420 , "deepCopy" was introduced. But it only deep-copies the array when "instance-head" is on the stack. So simply by adding a single line of code that allocates "head" to the...

Microsoft Edge Charka JIT Incomplete Fix For Issue 1420 #2

Title: Microsoft Edge: Chakra: JIT: The fix for issue 1420 is incomplete 2 CVE-2018-0934 Here's a snippet of JavascriptArray::BoxStackInstance. template T JavascriptArray::BoxStackInstanceT instance, bool deepCopy AssertThreadContext::IsOnStackinstance; // On the stack, the we reserved a pointer...

Microsoft Edge Charka JIT Incomplete Fix For Issue 1420

Microsoft Edge: Chakra: JIT: The fix for issue 1420 is incomplete. CVE-2018-0933 Here's a snippet of JavascriptArray::BoxStackInstance. To fix issue 1420 , "deepCopy" was introduced. It only deep-copies the array when "instance-head" is on the stack. So simply by adding a single line of code that...