Security

This blog post is the first in a series about hardening the security of the Exiv2 project. My goal is to share tips that will help you harden the security of your own project.

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.

On September 28, 2021, we received notice from the developer Axosoft regarding a vulnerability in a dependency of their popular git GUI client – GitKraken. An underlying issue with a dependency, called `keypair`, resulted in the GitKraken client generating weak SSH keys.

Today, we’re adding a proxy on top of the GitHub Advisory Database that speaks the `npm audit` protocol. This means that every version of the npm CLI that supports security audits is now talking directly to the GitHub Advisory Database.

GitHub’s bug bounty team is excited to kick off Cybersecurity Awareness Month with a spotlight on two security researchers who participate in the GitHub Security Bug Bounty Program.

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.

This post is a technical analysis of a recently disclosed Chrome JIT vulnerability (CVE-2021-30632) that was believed to be exploited in the wild. This vulnerability was reported by an anonymous researcher and was patched on September 13, 2021 in Chrome version 93.0.4577.82. I’ll cover the root cause analysis of the bug, as well as detailed exploitation.

npm access tokens will now follow the established format of GitHub authentication tokens.

We’re excited to announce that the GitHub Advisory Database now includes curated security advisories on the Rust ecosystem!

During an audit of Apache Dubbo v2.7.8 source code, I found multiple vulnerabilities enabling attackers to compromise and run arbitrary system commands on both Dubbo consumers and providers. In this blog post I detailed how I leveraged CodeQL as an audit oracle to help me find these issues.

We put out a call to open source developers and security researchers to talk about the security vulnerability disclosure process. Here’s what we found.

Between July 21, 2021 and August 13, 2021 we received reports through one of our private security bug bounty programs from researchers regarding vulnerabilities in tar and @npmcli/arborist.

How GitHub uses code scanning to increase developer happiness, and how you can too.

We’re changing which keys are supported in SSH and removing unencrypted Git protocol. Only users connecting via SSH or git:// will be affected. If your Git remotes start with https://, nothing in this post will affect you. If you’re an SSH user, read on for the details and timeline.

Beginning October 4, 2021, all connections to npm websites and the npm registry, including for package installation, must use TLS 1.2 or higher.