Google Chrome V8 - Turbofan JSCallReducer::ReduceArrayIndexOfIncludes Out-of-Bounds Read/Write

!-- Since commit https://chromium.googlesource.com/v8/v8.git/+/c22bb466d8934685d897708119543d099b9d2a9a turbofan supports inlining calls to array.includes and array.indexOf. The logic of the function is roughly: 1. Check the set of possible Maps of the array type with...

Trashing the Flow of Data

Posted by Stephen Röttger In this blog post I want to present crbug.com/944062, a vulnerability in Chrome’s JavaScript compiler TurboFan that was discovered independently by Samuel saelo@ via fuzzing with fuzzilli, and by myself via manual code auditing. The bug was found in beta and was fixed...

Chrome V8 Turbofan JSCallReducer::ReduceArrayIndexOfIncludes Failed Check

v8: turbofan: JSCallReducer::ReduceArrayIndexOfIncludes fails to insert Map checks Since commit https://chromium.googlesource.com/v8/v8.git/+/c22bb466d8934685d897708119543d099b9d2a9a turbofan supports inlining calls to array.includes and array.indexOf. The logic of the function is roughly: 1. Che...

Grasp the window of opportunity: see how do I get Chrome 1-day vulnerabilities and achieve the use-vulnerability warning-the black bar safety net

Overview For Chrome to say, when the discovery of a vulnerability, the first in the v8 source tree to be repaired, and then re-release a new stable version of Chrome, and in both during the process, the attacker can completely for a particular vulnerability, the development of a usable exploit...