The following security vulnerabilities were fixed:
CVE-2017-18248: Handle invalid characters properly in printing jobs. This fixes a problem that
was causing the DBUS library to abort the calling process. (bsc#1061066 bsc#1087018)
Fixed a local privilege escalation to root and sandbox bypasses in the
scheduler
CVE-2018-4180: Fixed a local privilege escalation to root in dnssd backend
(bsc#1096405)
CVE-2018-4181: Limited local file reads as root via cupsd.conf include
directive (bsc#1096406)
CVE-2018-4182: Fixed a sandbox bypass due to insecure error handling
(bsc#1096407)
CVE-2018-4183: Fixed a sandbox bypass due to profile misconfiguration
(bsc#1096408)
The following other issue was fixed:
Fixed authorization check for clients (like samba) connected through the
local socket when Kerberos authentication is enabled (bsc#1050082)