Zenbleed (CVE-2023-20593)

Let’s explore the “most exciting“ CPU vulnerability affecting Zen2 CPUs from AMD. Watch part 1 about fuzzing: buy my font (advertisement): This video is sponsored by Google: Original Zenbleed Writeup: Grab the code: cvtsi2ss: AMD Security Bulletin: RIDL Video: Tavis Ormandy: Chapters: 00:00 - Intro 02:27 - Patterns 03:56 - The C Exploit Code 05:20 - Assembly Generation with Compiler Preprocessor 07:40 - What are XMM and YMM Registers? 11:56 - Zenbleed: Trigger Merge Optimization 14:28 - Register File & Register Allocation Table 16:39 - Register Renaming 17:55 - Speculative Execution 18:55 - vzeroupper and SSE & AVX History 21:22 - Zenbleed Explanation 23:55 - How to fix Zenbleed? =[ ❤️ Support ]= → per Video: → per Month: 2nd Channel: =[ 🐕 Social ]= → Twitter: → Streaming: → TikTok: @liveoverflow_ → Instagram: → Blog: → Subreddit: → Facebook: