Bug 874685 (CVE-2012-5496)

Summary:	CVE-2012-5496 conga (Plone): DoS through unsanitised inputs into Kupu
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cluster-maint, jonathansteffan, jpokorny, rmccabe, rsteiger
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-06-26 21:22:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	956861
Bug Blocks:	874222

Description Jan Lieskovsky 2012-11-08 16:27:22 UTC

A denial of service flaw was found in the way Kupu, a document-centric open source client-side WYSIWYG editor, sanitized certain URLs durin spellcheck operation. When the Kupu editor was used with Plone content management system, a remote attacker could provide a specially-crafted input into the Kupu editor that, when processed would cause the ZServer thread to lock, refusing to serve future requests.

References:
[1] http://plone.org/products/plone/security/advisories/20121106/12
[2] http://plone.org/products/plone/security/advisories/20121106/

Relevant upstream HotFixes:
[3] http://plone.org/products/plone-hotfix/releases/20121106

From the OSS post:
[4] http://www.openwall.com/lists/oss-security/2012/11/07/4

the kupu_spellcheck.py change from upstream HotFix is relevant to this issue.

Comment 2 Jan Lieskovsky 2012-11-13 15:53:05 UTC

The CVE identifier of CVE-2012-5496 has been assigned to this issue:
http://www.openwall.com/lists/oss-security/2012/11/10/1

Comment 4 Vincent Danen 2014-06-26 21:22:27 UTC

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.