![]() ![]() ![]() Tool attacks Intel chips via power meter.Vulnerabilities in PMbus can brick server boards.“The Spectre attack, which was discovered in 2018, is based on such mispredictions”, says Razavi, “but initially it seemed that manufacturers had found ways to mitigate it.” This is by partly deleting the look-up table when switching between security contexts or adding a bit that tells the CPU whether or not a prediction in the look-up table was created in the kernel and can, therefore, be trusted. “Tthe crux of the matter with all these attacks is rather simple – namely, the fact that a computer’s CPU has to make guesses all the time, and those guesses can be tampered with,” said Wikner. “In fact, much like the movie of the same name, the Inception attack is particularly complex and difficult to explain,” says Daniël Trujillo, a master’s student who found this new attack during his thesis work in Razavi’s group, supervised by PhD student Johannes Wikner. The researchers informed AMD early on to give time to provide a security patch but are now looking at other processor architectures. Microsemi reveals results of Spectre and Meltdown investigation.Researchers find new vulnerabilities in Intel processors.Major security vulnerabilities found in DRAM.Razavi and his colleagues are presenting their research at the USENIX Security 2023 which starts today. The vulnerability was identified by a team of researchers at ETH led by Kaveh Razavi, professor in the Department of Information Technology and Engineering. ![]()
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