Signal boosting this in case someone hasn't seen it: there's a new flat in glibc (one of, if not the, most common library on Linux) that allows local privilege escalation. The latest versions of Fedora, Debian, and Ubuntu are all affected so update if you can.

Relevant links:

• https://www.bleepingcomputer.com/news/security/new-linux-glibc-flaw-lets-attackers-get-root-on-major-distros/
• https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt