A denial of service flaw was found in the way Plone, a user friendly and powerful content management system based on Zope, performed invoking of Rich Site Summary (RSS) web feed entries for private folders (folders for which the requester did not have access to but was aware of their path). A remote attacker could use this flaw to cause an infinite loop by providing a specially-crafted URL to the Plone instance. References: [1] http://plone.org/products/plone/security/advisories/20121106/22 [2] http://plone.org/products/plone/security/advisories/20121106/ Relevant upstream HotFixes: [3] http://plone.org/products/plone-hotfix/releases/20121106
From OSS post: [4] http://www.openwall.com/lists/oss-security/2012/11/07/4 upstream HotFix change relevant to this issue is python_scripts.py change.
The CVE identifier of CVE-2012-5506 has been assigned to this issue: http://www.openwall.com/lists/oss-security/2012/11/10/1
This issue may affect the version of plone as shipped with EPEL5, however the latest version there is 3.1.6 (and the latest 3.x release is 3.3.5, which was released a year prior to this flaw being discovered). Given the age of the EPEL5 package and its lack of support, we do not recommend anyone use it. This issue does not affect plone as provided with the conga package on Red Hat Enterprise Linux 5. Statement: Not vulnerable. This issue did not affect the versions of luci (as provided by conga) as shipped with Red Hat Enterprise Linux 5.