New Spectre-like attack uses speculative execution to overflow buffers
Research is continuing to find new attack vectors. Continue reading New Spectre-like attack uses speculative execution to overflow buffers
Category Archives: processors
Hyperthreading under scrutiny with new TLBleed crypto key leak
A new attack prompted OpenBSD’s developers to disable hyperthreading by default. Continue reading Hyperthreading under scrutiny with new TLBleed crypto key leak
New speculative-execution vulnerability strikes AMD, ARM, and Intel
Fortunately, existing fixes should provide the protection we need. Continue reading New speculative-execution vulnerability strikes AMD, ARM, and Intel
Major OS Players Misinterpret Intel Docs, and Now Kernels Can Be Hijacked
Apple, Microsoft, Red Hat and others have built an uncannily similar privilege escalation flaw into their Intel-based products. Continue reading Major OS Players Misinterpret Intel Docs, and Now Kernels Can Be Hijacked
Best Processor of 2018 (Top 5 High-End CPUs)
Intel Xeon Platinum 8180 Intel Core i9-7980XE Intel Xeon Gold 6154 Intel Xeon W-2195 AMD Ryzen Threadripper 1950X Price Price ~$13000 Price ~$2000 Price ~$3500 Price ~$2500 Price ~$1000 BM Performance BM Performance BM Performance BM Performance BM Per… Continue reading Best Processor of 2018 (Top 5 High-End CPUs)
AMD systems gain Spectre protection with latest Windows fixes
Systems will still need updated firmware to get the latest microcode, however. Continue reading AMD systems gain Spectre protection with latest Windows fixes
As predicted, more branch prediction processor attacks are discovered
New attack focuses on a different part of the branch prediction system. Continue reading As predicted, more branch prediction processor attacks are discovered
What’s worse? The AMD chip flaws or the disclosure process?
A small cybersecurity company and research group is publicly reporting major, Meltdown-style vulnerabilities in chips made by AMD, yet the disclosure itself has sent security researchers into a frenzy about possible ulterior motives. CTS Labs, an Israeli cybersecurity company that purportedly focuses on hardware, launched a website and released a white paper on Tuesday describing 13 security flaws in AMD’s EPYC, Ryzen, Ryzen Pro and Ryzen processors. The chips are used in laptops, mobile devices and servers. The vulnerabilities reportedly include backdoors that would allow attackers to inject malicious code onto AMD’s chips. Such malware could allow attackers to take complete control of AMD processors, steal network credentials, install malware and read and write on protected memory areas, among other risks. CTS Labs released the vulnerability information on a public website, amdflaws.com, saying it released the findings for the sake of public awareness. “In particular, we urge the community to pay closer attention to […]
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Continue reading What’s worse? The AMD chip flaws or the disclosure process?
Intel ships (hopefully stable) microcode for Skylake, Kaby Lake, Coffee Lake
All 6th, 7th, and 8th generation Core processors now have microcode available. Continue reading Intel ships (hopefully stable) microcode for Skylake, Kaby Lake, Coffee Lake
Intel releases new Spectre microcode update for Skylake; other chips remain in beta
Previous microcode update was reported to cause unwanted system reboots. Continue reading Intel releases new Spectre microcode update for Skylake; other chips remain in beta