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Files from lokihardt

First Active2017-02-24
Last Active2018-07-13
Microsoft Edge Chakra JIT GlobOpt::OptTagChecks Property Consideration
Posted Nov 25, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra JIT GlobOpt::OptTagChecks must consider IsLoopPrePass properly.

tags | exploit
advisories | CVE-2017-11840
MD5 | 5bd662559cea0fe382cb5b1af85cbdb3
Microsoft Edge Chakra JIT BailOutOnTaggedValue Bailouts
Posted Nov 25, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra JIT BailOutOnTaggedValue bailouts can be generated for constant values.

tags | exploit
advisories | CVE-2017-11839
MD5 | b08560e7ac644d466d3a2421baf54863
Microsoft Edge Chakra JIT Bailout Generation
Posted Nov 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from a JIT issue where bailouts must be generated for OP_Memset.

tags | exploit
advisories | CVE-2017-11873
MD5 | c404973e6b026871d91a362e59d73a57
Microsoft Edge Charka JIT Incorrect Check
Posted Nov 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from a Jit related incorrect integer overflow check in Lowerer::LowerBoundCheck.

tags | exploit, overflow
advisories | CVE-2017-11861
MD5 | f57dbe49f45b04c0077db21db1563088
Microsoft Edge Chakra JIT Type Confusion
Posted Nov 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from a JIT related type confusion vulnerability with switch statements.

tags | exploit
advisories | CVE-2017-11811
MD5 | 8f8c70e8979dd42b0451c66d98b096e6
Microsoft Edge Object.setPrototypeOf Memory Corruption
Posted Nov 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge suffers from a memory corruption vulnerability in Object.setPrototypeOf.

tags | exploit
advisories | CVE-2017-8751
MD5 | 92759ead0f53bf182fa98170e0d5a064
Microsoft Edge Chakra StackScriptFunction::BoxState::Box Uninitialized Pointers
Posted Oct 14, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra accesses uninitialized pointers in StackScriptFunction::BoxState::Box.

tags | exploit
advisories | CVE-2017-11809
MD5 | 18e6e8dec6b5f143ccd448fce096def8
Microsoft Edge Chakra JIT Failed RegexHelper::StringReplace Call
Posted Oct 14, 2017
Authored by Google Security Research, lokihardt

The "String.prototype.replace" method can be inlined in the JIT process. So in the method, all the calls which may break the JIT assumptions must be invoked with updating "ImplicitCallFlags". But "RegexHelper::StringReplace" calls the replace function without updating the flag. Therefore it fails to detect if a user function was called.

tags | exploit
advisories | CVE-2017-11802
MD5 | 59bdc94ef54bad4cc587d3c9269d17cb
Microsoft Edge Chakra JIT Incorrect GenerateBailOut Calling Patterns
Posted Oct 14, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra JIT compiler creates incorrect GenerateBailOut calling patterns.

tags | exploit
advisories | CVE-2017-11799
MD5 | 11f1ed6218c70a607f5e232014a97289
WebKit JSC Incorrect Optimization
Posted Oct 3, 2017
Authored by Google Security Research, lokihardt

A proof of concept has been released that bypasses the fix for the original finding regarding an incorrect optimization in BytecodeGenerator::emitGetByVal in WebKit JSC.

tags | exploit, proof of concept
advisories | CVE-2017-7117
MD5 | c93b1f362e5c29a309a5639c5750833c
Microsoft Edge Chakra JavascriptFunction::ReparseAsmJsModule Parsing Issue
Posted Sep 22, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra JavascriptFunction::ReparseAsmJsModule suffers from a parsing issue.

tags | exploit
advisories | CVE-2017-8755
MD5 | e42ea1ce1dac6aa761323bae506ada67
Microsoft Edge Chakra Parser::ParseCatch Failed eval Handle
Posted Sep 22, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra Parser::ParseCatch fail to handle eval properly.

tags | exploit
advisories | CVE-2017-11764
MD5 | 89fd9d095aadad5c335a31930ad47781
Microsoft Edge Charka Wrong Scopes In Deferred Parsing
Posted Sep 22, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra makes wrong scopes in deferred parsing.

tags | exploit
advisories | CVE-2017-8740
MD5 | 64d004e6d66edefe6e65486064501fc5
Microsoft Edge Chakra Incorrect Parse
Posted Sep 22, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Charka incorrectly parses object patterns.

tags | exploit
advisories | CVE-2017-8729
MD5 | adcfdebb66197fad09cf1524ba76fe89
WebKit JSC BytecodeGenerator::emitGetByVal Incorrect Optimization
Posted Sep 12, 2017
Authored by Google Security Research, lokihardt

WebKit JSC suffers from an incorrect optimization in BytecodeGenerator::emitGetByVal.

tags | exploit
advisories | CVE-2017-7061
MD5 | a195e7052be8a79b7fc787ec9487bbaf
Microsoft Edge Chakra Incorrect Jit Optimization
Posted Aug 17, 2017
Authored by Google Security Research, lokihardt

Yet another finding that the fix for an incorrect jit optimization with TypedArray setter in Microsoft Edge Chakra may not be sufficient.

tags | exploit
advisories | CVE-2017-8601
MD5 | bdb1cf3e206e20716cc1331d5db8586b
Microsoft Edge Chakra EmitNew Integer Overflow
Posted Aug 17, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from an integer overflow vulnerability in EmitNew.

tags | exploit, overflow
advisories | CVE-2017-8636
MD5 | 8345cf786d59f19382f074d30d3d7a64
Microsoft Edge Chakra Parser::ParseFncFormals Uninitialized Arguments
Posted Aug 17, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from an uninitialized arguments vulnerability in Parser::ParseFncFormals with the "PNodeFlags::fpnArguments_overriddenInParam" flag.

tags | exploit
advisories | CVE-2017-8670
MD5 | a0bb4862186218d2082f06418fe41eef
Microsoft Edge Chakra Uninitialized Arguments
Posted Aug 17, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from an uninitialized arguments vulnerability.

tags | exploit
advisories | CVE-2017-8640
MD5 | 254b2f18f283725c45ea772937348381
Microsoft Edge Chakra JavascriptFunction::EntryCall Mishandled CallInfo
Posted Aug 17, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Charka does not handle CallInfo properly in JavascriptFunction::EntryCall.

tags | exploit
advisories | CVE-2017-8671
MD5 | ca7cefcfefb9812efa9d1102c48d1f49
Microsoft Edge Chakra JavascriptArray::ConcatArgs Type Confusion
Posted Aug 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from a type confusion vulnerability in JavascriptArray::ConcatArgs.

tags | advisory
advisories | CVE-2017-8634
MD5 | 3eadfb4f26ae49414d9bbcd6ff420ab0
Microsoft Edge Chakra Incorrect Jit Optimization
Posted Aug 16, 2017
Authored by Google Security Research, lokihardt

This is a follow-up finding that the fix for an incorrect jit optimization with TypedArray setter in Microsoft Edge Chakra may not be sufficient.

tags | exploit
advisories | CVE-2017-8548
MD5 | afbcee955491660e874dbdcf65f457b4
Microsoft Edge Chakra EmitAssignment Register Issue
Posted Aug 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra has an issue where EmitAssignment uses the "this" register without initializing.

tags | advisory
MD5 | 46341894e6a60a6a21b912305869341d
Microsoft Edge Chakra TryUndeleteProperty Incorrect Usage
Posted Aug 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from an incorrect usage of TryUndeleteProperty.

tags | exploit
advisories | CVE-2017-8635
MD5 | 1f197a1d5f569cc871c7c7d4aebd5330
Microsoft Edge Chakra PushPopFrameHelper Incorrect Usage
Posted Aug 16, 2017
Authored by Google Security Research, lokihardt

Microsoft Edge Chakra suffers from an incorrect usage of PushPopFrameHelper in InterpreterStackFrame::ProcessLinkFailedAsmJsModule.

tags | exploit
advisories | CVE-2017-8646
MD5 | acec101c7b823cc6f8e22b1fe6ec1f01
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