GitHub Security Lab

In this post I’ll exploit CVE-2022-1134, a type confusion in Chrome that I reported in March 2022, which allows remote code execution (RCE) in the renderer sandbox of Chrome by a single visit to a malicious site. I’ll also look at some past vulnerabilities of this type and some implementation details of inline cache in V8, the JavaScript engine of Chrome.

In this post I’ll exploit CVE-2022-22057, a use-after-free in the Qualcomm gpu kernel driver, to gain root and disable SELinux from the untrusted app sandbox on a Samsung Z flip 3. I’ll look at various mitigations that are implemented on modern Android devices and how they affect the exploit.

How can you robustly assert and identify a user’s identity?

We’re taking a look at some of the most common security vulnerabilities and detailing how developers can best protect themselves.

Do you worry that a CVE will hurt the reputation of your project? In reality, CVEs are a tracking number, and nothing more. Here’s how we think of them at GitHub.

If there’s one habit that can make software more secure, it’s probably input validation. Here’s how to apply OWASP Proactive Control C5 (Validate All Inputs) to your code.

Practical tips on how to apply OWASP Top 10 Proactive Control C4.

A comprehensive guide for vulnerability reporters.

When it comes to secure database access, there’s more to consider than SQL injections. OWASP Top 10 Proactive Control C3 offers guidance.

The GitHub Security Lab’s CodeQL bounty program fuels GitHub Advanced Security with queries written by the open source community.

In this post, I’ll discuss how to apply OWASP Proactive Control C2: Leverage security frameworks and libraries.

Defining your security requirements is the most important proactive control you can implement for your project. Here’s how.

This lesser-known OWASP project aims to help developers prevent vulnerabilities from being introduced in the first place.

OSS-Fuzz is Google’s awesome fuzzing service for open source projects. GitHub Security Lab’s @kevinbackhouse describes enrolling a project.

The Exiv2 team tightened our security by enabling GitHub’s code scanning feature and adding custom queries tailored to the Exiv2 code base.