Podcasts Technology Day[0] [binary] A Heap of Linux Bugs

[binary] A Heap of Linux Bugs

Published: Nov. 22, 2023, 1 p.m.

Last week we brought you several Windows bugs, this week we are talking Linux kernel vulnerabilities and exploitation. We start off looking at a weird but cool CPU bug, Reptar, then we get into nftables, io_uring, and talk about a newer mitigations hitting Linux 6.6 that randomizes the caches allocations end up in.

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Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/226.html

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[00:00:00] Introduction

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[00:00:21] Reptar

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[00:11:56] One shot, Triple kill: Pwning all three Google kernelCTF instances with a single 1-day Linux vulnerability

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[00:31:09] Conquering the memory through io_uring - Analysis of CVE-2023-2598

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[00:38:00] Exploring Linux's New Random Kmalloc Caches

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[00:48:09] ThinkstScapes Quarterly - 2023.Q3

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[00:49:34] CacheWarp

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The DAY[0] Podcast episodes are streamed live on Twitch twice a week:

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-- Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities

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-- Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities and exploits.

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We are also available on the usual podcast platforms:

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-- Apple Podcasts: https://podcasts.apple.com/us/podcast/id1484046063

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-- Spotify: https://open.spotify.com/show/4NKCxk8aPEuEFuHsEQ9Tdt

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-- Google Podcasts: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hMTIxYTI0L3BvZGNhc3QvcnNz

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-- Other audio platforms can be found at https://anchor.fm/dayzerosec

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You can also join our discord: https://discord.gg/daTxTK9