[bitfolk] Understanding what's needed to patch Looney Tunables

Hi, Apologies for exposing my ignorance in public like this, but can somebody tell me how I'd know if my Debian Bookworm system has been patched to ensure it's no longer vulnerable to the "Looney Tunables" privilege escalation (https://www.debian.org/security/2023/dsa-5514)? The fix is apparently in the most recent glibc source package. I don't seem to have that glibc package installed (and it's a source package, not a binary?), but I read that stock installs of Debian (and most linuxes) are vulnerable. Which actual binary packages need to be updated to fix the vulnerability in the dynamic loader, and how does this relate to the source package? Cheers, jmi -- Jamie MacIsaac jamie(a)macisa.ac