It was reported [1] that CUPS allow local users to read arbitrary files via symlink attack on the directory index files: index.html index.class index.pl index.php index.pyc index.py Upstream patches are available at [2] as well. [1]: http://seclists.org/oss-sec/2014/q3/209 [2]: https://cups.org/str.php?L4455
Created cups tracking bugs for this issue: Affects: fedora-all [bug 1128775]
Statement: This issue is not planned to be fixed in Red Hat Enterprise Linux 5 as it is now in Production 3 Phase of the support and maintenance life cycle, https://access.redhat.com/support/policy/updates/errata/
IssueDescription: It was discovered that CUPS allowed certain users to create symbolic links in certain directories under /var/cache/cups/. A local user with the 'lp' group privileges could use this flaw to read the contents of arbitrary files on the system or, potentially, escalate their privileges on the system.
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2014:1388 https://rhn.redhat.com/errata/RHSA-2014-1388.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHBA-2015:0386 https://rhn.redhat.com/errata/RHBA-2015-0386.html