[Binary] Rooting Ubuntu By Accident and Samsung Kernel Bugs

Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/rooting-ubuntu-by-accident-and-samsung-kernel-bugs.html We are back for the first 2022 binary episode, and its all kernel. Obtaining root through an hours long exploit process on Ubuntu thanks to an invalid free, use-after-free in XNU due to bad locking, and some terrible code in Samsung S20 DSP kernel driver with multiple integer overflows. [00:00:42] Getting root on Ubuntu through wishful thinking [00:19:21] XNU: heap-use-after-free in inm_merge [00:29:42] Kernel LPE in the Vision DSP Kernel Driver [CVE-2021-25467] [00:34:34] Kernel LPE in the Vision DSP Kernel Driver's ELF Linker [CVE-2021-25475] [00:37:16] Linux Heap Exploitation - Part 3 [00:38:37] PS4 CCP Crypto Bug The DAY[0] Podcast episodes are streamed live on Twitch (@dayzerosec) 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. The Video archive can be found on our Youtube channel: https://www.youtube.com/c/dayzerosec You can also join our discord: https://discord.gg/daTxTK9 Or follow us on Twitter (@dayzerosec) to know when new releases are coming.