Cybersecurity
New Spectre v2 attack variant leaks Linux root password hash in minutes
A new Spectre v2 attack variant called Branch Target Reuse (BTR) can recover root password hashes from Intel computers running Linux in just a few minutes.
Summary
A new Spectre v2 attack variant called Branch Target Reuse (BTR) can recover root password hashes from Intel computers running Linux in just a few minutes. A BTR attack exploits stale information in a processor's branch predictor after a just-in-time (JIT) engine reuses memory for new code.
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