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All npm accounts that do not have two-factor authentication (2FA) enabled will now receive an email with a one-time password (OTP) when authenticating through either the npmjs.com website or the…

Today, we’re shipping improvements to Dependabot alerts that help you more easily understand and remediate vulnerabilities from dependencies in your codebase. Persisted Dependabot alerts Developers can now view alerts that…

With the successful liftoff of the James Webb Space Telescope, we ask our very own Arfon Smith about the history of open source and space science.

How to exploit a double-free vulnerability in Ubuntu’s accountsservice (CVE-2021-3939)

Today we’re introducing enhanced login verification to the npm registry, and we will begin a staged rollout to maintainers beginning Dec 7.

This post is a technical analysis of a recently disclosed Chrome vulnerability in the garbage collector of v8 (CVE-2021-37975) that was believed to be exploited in the wild. This vulnerability was reported by an anonymous researcher and was patched on September 30, 2021 in Chrome version 94.0.4606.71. I’ll cover the root cause analysis of the bug, as well as detailed exploitation.

In this post, I’ll exploit a use-after-free (CVE-2021-30528) in the Chrome browser process that I reported to escape the Chrome sandbox. This is a fairly interesting bug that shows some of the subtleties involved in the interactions between C++ and Java in the Android version of Chrome.

It’s been a busy time of the year for our Hubbers (GitHub employees). We’ve been shipping products, getting ready for launches, and taking some much needed time off for the…

We recently set about creating a framework and service for automatically generating social sharing images for repositories and other resources on GitHub.

polkit is a system service installed by default on many Linux distributions. It’s used by systemd, so any Linux distribution that uses systemd also uses polkit.

Can agreement terms be a great user experience? This was the challenge GitHub’s legal department set for itself last year. We’re excited to announce all-new GitHub Customer Terms for our…

The open source community is always hard at work. February’s projects were super hard to pick since there are so many amazing releases. These are exciting new releases from some…

In this series of posts, I’ll go through the exploit of three security bugs that I reported, which, when used together, can achieve remote kernel code execution in Qualcomm’s devices by visiting a malicious website in a beta version of Chrome. In this first post, I’ll exploit a use-after-free in Qualcomm’s kgsl driver (CVE-2020-11239), a bug that I reported in July 2020 and that was fixed in January 2021, to gain arbitrary kernel code execution from the application domain.

In this second post of the series, I’ll exploit a use-after-free in the Payment component of Chrome (1125614/GHSL-2020-165), a bug that I reported in September 2020 that only affected version 86 of Chrome, which was in beta. I’ll use it to escape the Chrome sandbox to gain privilege of a third party App on Android from a compromised renderer.

This post is the fifth installment of our five-part series on building GitHub’s new homepage: How our globe is built How we collect and use the data behind the globe…

Earlier this year, we upgraded the notifications experience on GitHub, focusing on filters that get you straight to the updates that matter most to you. Just last week, we shipped…

Ubuntu 20.04 local privilege escalation using vulnerabilities in gdm3 and accountsservice (CVE-2020-16125, CVE-2020-16126, CVE-2020-16127)

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In this post I’ll show how garbage collections (GC) in Chrome may be triggered with small memory allocations in unexpected places, which was then used to cause a use-after-free bug.

Learn more about the security vulnerabilities affecting Git 2.26 and older.

You can now link issues and pull requests via the sidebar in their respective pages. Connections made here will automatically close issues once a linked pull request is merged. Learn…