apr-1.7.2/Apache shared memory now world readable?

hi all,

I upgraded to apr-1.7.2 and apr-util-1.6.3 today and ran into an issue where
Apache 2.4.55 would not start any more because it could not open the 
ScoreBoardFile and/or SSLSessionCache. This is apparently caused by this 
change:

  *) configure: Prefer posix name-based shared memory over SysV IPC.
     [Jim Jagielski]

Some of my systems did not have the /dev/shm directory and on most where it
existed, it was a normal directory, not a tmpfs. Creating the directory
fixes the problem but I figured that I better install a tmpfs everywhere.
But if I do that, Apache creates world readable files:

 -rw-r--r-- 1 root root 96320 Feb  8 22:56 ShM.5c729b24H72d5072a

I think this is the ScoreBoardFile from Apache. Should it be world readable?
If no: Did I make a mistake?

Regards,

Michael Brunnbauer

-- 
++  Michael Brunnbauer
++  netEstate GmbH
++  Geisenhausener Straße 11a
++  81379 München
++  Tel +49 89 32 19 77 80
++  Fax +49 89 32 19 77 89 
++  E-Mail [email protected]
++  https://www.netestate.de/
++
++  Sitz: München, HRB Nr.142452 (Handelsregister B München)
++  USt-IdNr. DE221033342
++  Geschäftsführer: Michael Brunnbauer, Franz Brunnbauer
++  Prokurist: Dipl. Kfm. (Univ.) Markus Hendel

-----BEGIN PGP SIGNATURE-----

iF0EARECAB0WIQTAkMfrYFFSaeacJ6u+j6gOLbYeuQUCY+Qc4wAKCRC+j6gOLbYe
uR20AKDMK6mEQWrjL61PWv2xQqPWHxSTWgCbB1dQKbirB9u6xsFOVev13pUTQos=
=T+rx
-----END PGP SIGNATURE-----