Feb. 9, 2023, 1 a.m. | DAY[0]

DAY[0] www.youtube.com

First, we take a look at some positive changes to OSS Fuzz, then we dive into some vulnerabilities. This includes an XNU heap out-of-bounds write vulnerability, a Chrome heap-based overflow vulnerability, and an out-of-bounds read in cmark-gfm that, while probably not exploitable, is still intriguing.

Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/186.html

[00:00:00] Introduction
[00:00:22] Spot the Vuln - The Great String Escape
[00:03:03] Taking the next step: OSS-Fuzz in 2023
[00:09:48] XNU Heap Underwrite in …

binary binary exploitation chrome dive escape exploit exploitation fuzz great introduction oss oss-fuzz out-of-bounds out-of-bounds write overflow podcast vuln vulnerabilities vulnerability

SOC 2 Manager, Audit and Certification

@ Deloitte | US and CA Multiple Locations

Information Systems Security Officer (ISSO) (Remote within HR Virginia area)

@ OneZero Solutions | Portsmouth, VA, USA

Security Analyst

@ UNDP | Tripoli (LBY), Libya

Senior Incident Response Consultant

@ Google | United Kingdom

Product Manager II, Threat Intelligence, Google Cloud

@ Google | Austin, TX, USA; Reston, VA, USA

Cloud Security Analyst

@ Cloud Peritus | Bengaluru, India