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Bleeping Computer
AMD has released mitigation and firmware updates to address a high-severity vulnerability that can be exploited to load malicious CPU microcode on unpatched devices. [...]
The Hacker News
A security vulnerability has been disclosed in AMD's Secure Encrypted Virtualization (SEV) that could permit an attacker to load a malicious CPU microcode under specific conditions. The flaw, tracked as CVE-2024-56161, carries a CVSS score of 7.2 out of 10.0, indicating high severity. "Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local
The Register
Is that a lot? Depends on the context. GHz, no. Voltage, yes Intel has divulged more details on its Raptor Lake family of 13th and 14th Gen Core processor failures and the 0x129 microcode that's supposed to prevent further damage from occurring.…
The Register
We're all for encouraging people to fix bugs but this is an odd way to do it False alarm: despite a patch notes suggesting otherwise, that mysterious blob of microcode released for many Intel microprocessors last week was not a security update, the x86 giant says.…
The Register
Peek behind the curtain to see SGX implemented, Spectre mitigated, and more Infosec boffins have released a tool to decrypt and unpack the microcode for a class of low-power Intel CPUs, opening up a way to look at how the chipmaker has implemented various security fixes and features as well as things like virtualization.…
The Register
Local privileges required to exploit flaw in Ryzen and Epyc CPUs. Some patches available, more on the way AMD will issue a microcode patch for a high-severity vulnerability that could weaken cryptographic keys across Epyc and Ryzen CPUs.…
The Register
Malicious microcode vulnerability discovered, fixes rolling out for Epycs at least Googlers have not only figured out how to break AMD's security – allowing them to load unofficial microcode into its processors to modify the silicon's behavior – but also demonstrated this by producing a microcode patch that makes the chips always output 4 when asked for a random number.…
The Register
Answers on a postcard to what 'Microcode Signature Verification Vulnerability' might mean AMD has confirmed at least some of its microprocessors suffer a microcode-related security vulnerability, the existence of which accidentally emerged this month after a fix for the flaw appeared in a beta BIOS update from PC maker Asus.…