You know that sandboxing tool, Firejail, the one that is supposed to help keep you safe? Well it turns out that that it can actually make your computer even more vulnerable.
Suse security researcher Sebastian Krahmer has released a proof of concept for this vulnerability on the oss-sec mailing list. The entire exploit is just barely over 100 lines of C code, and that is including the 30 line comment at the top.
I am spinning up a VM now to start experimenting with this, and I will update this post if there is any more information on this vulnerability.