Looking at the patches for CVE-2012-5519 committed 3rd December 2012 it seems that the SystemGroup variable was removed from cupsd.conf configuration but existing entries in cupds.conf were not migrated in the post-inst scripts.
cups (1.5.3-0ubuntu5.1) precise-security; urgency=low * SECURITY UPDATE: privilege escalation via config file editing - debian/patches/CVE-2012-5519.patch: split configuration file into two, to isolate options that have a security impact. - debian/cups.install: also install cups-files.conf - debian/patches/removecvstag.patch: updated to remove tag from cups-files.conf. - CVE-2012-5519 ** CVE added: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2012-5519 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1088448 Title: Unknown directive SystemGroup Status in “cups” package in Ubuntu: Confirmed Bug description: Ubuntu 12.04 Precise, /var/log/cups/error_log shows: E [10/Dec/2012:11:28:56 +0000] Unknown directive SystemGroup on line 16 of /etc/cups/cupsd.conf. The file contains: # Administrator user group... SystemGroup lpadmin I can find no reference to "SystemGroup" in man 5 cupsd.conf. $ apt-cache policy cups cups: Installed: 1.5.3-0ubuntu5.1 Candidate: 1.5.3-0ubuntu5.1 Version table: *** 1.5.3-0ubuntu5.1 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages 100 /var/lib/dpkg/status 1.5.2-9ubuntu1 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1088448/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp