So this is only exploitable if the attacker already has a unpriviledged account?

Major distros

Huh. https://access.redhat.com/security/cve/cve-2023-6246

Red Hat Enterprise Linux 6  compat-glibc	Not affected		
Red Hat Enterprise Linux 6  glibc    		Not affected		
Red Hat Enterprise Linux 7  compat-glibc	Not affected		
Red Hat Enterprise Linux 7  glibc    		Not affected		
Red Hat Enterprise Linux 8  glibc    		Not affected		
Red Hat Enterprise Linux 9  glibc    		Not affected

Best let Rocky and Alma know too – and OEL so all the enterprise ones are covered.