macOS 10.15.1 Update Fixes Kernel Prelinking

Marco on Mac, Little Snitch — October 30, 2019

The initial release of macOS Catalina caused trouble for a lot of Little Snitch users. Updating an existing version of Little Sntich would almost always lead to a dreaded “Version Mismatch” error being shown after restarting your Mac. We…

How Kernel Prelinking Works on macOS Catalina (or not)

Christian on Mac, Little Snitch, Developer — October 11, 2019

Update on October 30, 2019: This issue is fixed in macOS 10.15.1. In this article we’d like to outline some technical details about how the installation of a kernel extension works on macOS Catalina, about potential pitfalls in this process, what…

The Story Behind CVE-2019-13013

Christian on Mac, Security, Little Snitch, Developer — August 26, 2019

This blog post targets fellow software developers. It’s a story of how it could happen that we shipped a version of Little Snitch with a serious vulnerability and, more importantly, what we can learn from it. It all began with a security…

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