Intel claims that AMD suffers from new Spectre BHB vulnerability

Stefan Mileschin · 16th March 2022, 05:38

Its patches have been borked since 2018

Intel has been claiming that AMD is not as safe as is claimed after news of a fresh Spectre BHB vulnerability that only impacts Intel and Arm processors emerged this week.

Intel's said as it started to dig around these new attack vectors it unearthed a problem with AMD Spectre patches.

According to Intel’s STORM security team one of the patches that AMD has used to fix the vulnerabilities has been broken since 2018.

In response, AMD has issued a security bulletin and updated its guidance to recommend using an alternative method to mitigate the Spectre vulnerabilities, thus repairing the issue again.

Intel's processors were recently found to still be susceptible to Spectre v2-based attacks via a new Branch History Injection variant, this despite the company's use of the Enhanced Indirect Branch Restricted Speculation (eIBRS) and/or Retpoline mitigations that were thought to prevent further attacks.

https://fudzilla.com/news/54533-inte...-vulnerability

16th March 2022, 05:38	#1
Stefan Mileschin [M] Reviewer Join Date: May 2010 Location: Romania Posts: 153,575	Intel claims that AMD suffers from new Spectre BHB vulnerability Its patches have been borked since 2018 Intel has been claiming that AMD is not as safe as is claimed after news of a fresh Spectre BHB vulnerability that only impacts Intel and Arm processors emerged this week. Intel's said as it started to dig around these new attack vectors it unearthed a problem with AMD Spectre patches. According to Intel’s STORM security team one of the patches that AMD has used to fix the vulnerabilities has been broken since 2018. In response, AMD has issued a security bulletin and updated its guidance to recommend using an alternative method to mitigate the Spectre vulnerabilities, thus repairing the issue again. Intel's processors were recently found to still be susceptible to Spectre v2-based attacks via a new Branch History Injection variant, this despite the company's use of the Enhanced Indirect Branch Restricted Speculation (eIBRS) and/or Retpoline mitigations that were thought to prevent further attacks. https://fudzilla.com/news/54533-inte...-vulnerability

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