It was found that a local attacker can perform limited reads of arbitrary files as root by manipulating cupsd.conf.
Created cups tracking bugs for this issue:
Affects: fedora-all [bug 1607293]
Similar to CVE-2018-4180, this attack vector is only available to users in the cups SystemGroup groups, who can manipulate cupsd.conf using cupsctl. Impact is further limited when SELinux is enforcing as cupsd operates under a restricted context cupsd_t.
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via RHSA-2020:1050 https://access.redhat.com/errata/RHSA-2020:1050
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):