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2. TLBleed - Wikipedia

   en.wikipedia.org/wiki/TLBleed

   The attack led to the OpenBSD project disabling simultaneous multithreading on Intel microprocessors. [ 2 ] [ 5 ] The OpenBSD project leader Theo de Raadt has stated that, while the attack could theoretically be addressed by preventing tasks with different security contexts from sharing physical cores, such a fix is currently impractical ...

3. Transient execution CPU vulnerability - Wikipedia

   en.wikipedia.org/wiki/Transient_execution_CPU...

   In April 2024, it was revealed that the BHI vulnerability in certain Intel CPU families could be still exploited in Linux entirely in user space without using any kernel features or root access despite existing mitigations. [76] [77] [78] Intel recommended "additional software hardening". [79] The attack was assigned CVE-2024-2201.

4. Reptar (vulnerability) - Wikipedia

   en.wikipedia.org/wiki/Reptar_(vulnerability)

   Reptar is a CPU vulnerability discovered in late 2023, affecting a number of recent families of Intel x86 CPUs. According to The Register, the following CPU families are vulnerable: Alder Lake, Raptor Lake and Sapphire Rapids. [1] The Reptar vulnerability relates to processing of x86 instruction prefixes in ways that lead to unexpected behavior ...

5. Downfall (security vulnerability) - Wikipedia

   en.wikipedia.org/wiki/Downfall_(security...

   Intel promised microcode updates to resolve the vulnerability. [1] The microcode patches have been shown to significantly reduce the performance of some heavily-vectorized loads. [7] Patches to mitigate the effects of the vulnerability have also been created as part of the forthcoming version 6.5 release of the Linux kernel. [8]

6. Spectre (security vulnerability) - Wikipedia

   en.wikipedia.org/wiki/Spectre_(security...

   The vulnerability is known to affect Skylake and later processors from Intel and Zen-based processors from AMD. [ 54 ] In February 2023, a team of researchers at North Carolina State University uncovered a new code execution vulnerability called Spectre-HD, also known as "Spectre SRV" or "Spectre v6".

7. Meltdown (security vulnerability) - Wikipedia

   en.wikipedia.org/wiki/Meltdown_(security...

   Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...