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New Spectre variants earn $100,000 bounty from Intel

July 13, 2018 / Michael Heller

Researchers discovered two new Spectre variants that can be used to bypass protections and attack systems and earned $100,000 in bug bounties from Intel. Researchers found new speculative execution attacks against Intel and ARM chips, and the findings earned them a $100,000 reward under Intel's bug bounty. The new methods are themselves variations on Spectre v1 -- the bounds check bypass version of Spectre attacks -- and are being tracked as Spectre variants 1.1 and 1.2. The new Spectre 1.1 has also earned a new Common Vulnerabilities and Exposures (CVE) number, CVE-2018-3693, because it "leverages speculative stores to create speculative buffer overflows" according to Vladimir Kiriansky, a doctoral candidate in electrical engineering and computer science at MIT, and Carl Waldspurger of Carl Waldspurger Consulting. "Much like classic buffer overflows, speculative out-of-bounds stores can modify data and code pointers. Data-value attacks can bypass some Spectre v1 mit...