[binary] Hypervisor Bugs and a FAR-out iOS bug

This week kicks off with a a V8 misoptimization leading to out-of-bounds access, an unprotected MSR in Microsoft's Hypervisor allowing corruption of Hypervisor code. We also take a quick look at a 2021 CVE with an integer underflow leading to an overflow in the Windows Kernel low-fragmentation heap, and finally an interesting information leak due to the kernel not clearing a sensitive register. Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/228.html [00:00:00] Introduction [00:00:56] Spot the Vuln - Beyond the Grave [00:04:00] Chrome V8 Hole Exploit [00:15:57] How I found Microsoft Hypervisor bugs as a by-product of learning [00:33:13] Exploitation of a kernel pool overflow from a restrictive chunk size [CVE-2021-31969] [00:44:13] That's FAR-out, Man [00:47:38] Money Tree [00:50:21] How to voltage fault injection The DAY[0] Podcast episodes are streamed live on Twitch twice a week: -- Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities -- Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities and exploits. We are also available on the usual podcast platforms: -- Apple Podcasts: https://podcasts.apple.com/us/podcast/id1484046063 -- Spotify: https://open.spotify.com/show/4NKCxk8aPEuEFuHsEQ9Tdt -- Google Podcasts: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hMTIxYTI0L3BvZGNhc3QvcnNz -- Other audio platforms can be found at https://anchor.fm/dayzerosec You can also join our discord: https://discord.gg/daTxTK9