Bug 1091568 (CVE-2014-4338)

Summary:	CVE-2014-4338 cups-filters: unsupported BrowseAllow value lets cups-browsed accept from all hosts
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	carnil, grocha, jpopelka, twaugh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	cups-filters 1.0.53	Doc Type:	Bug Fix
Doc Text:	A flaw was found in the way the cups-browsed daemon interpreted the "BrowseAllow" directive in the cups-browsed.conf file. An attacker able to add a malformed "BrowseAllow" directive to the cups-browsed.conf file could use this flaw to bypass intended access restrictions.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-20 10:44:27 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:	1091569, 1150516, 1150520
Bug Blocks:	1091571

Description Vincent Danen 2014-04-25 23:11:45 UTC

A flaw in cups-filters was fixed upstream [1] and is described as follows:

cups-browsed: SECURITY FIX: Fix on usage of the "BrowseAllow" directive in cups-browsed.conf. Before, if the argument of a "BrowseAllow" directive is not understood it is treated as the directive not having been there, allowing any host if this was the only "BrowseAllow" directive. Now we treat this as a directive which no host can fulfill, not allowing any host if it was the only one. No "BrowseAllow" directive means access for all, as before ([2]).


[1] http://bzr.linuxfoundation.org/loggerhead/openprinting/cups-filters/revision/7195
[2] https://bugs.linuxfoundation.org/show_bug.cgi?id=1204

Comment 1 Vincent Danen 2014-04-25 23:12:24 UTC

Created cups-filters tracking bugs for this issue:

Affects: fedora-all [bug 1091569]

Comment 5 Fedora Update System 2014-05-06 03:37:55 UTC

cups-filters-1.0.53-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2014-06-10 02:53:20 UTC

cups-filters-1.0.53-2.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Murray McAllister 2014-06-20 03:10:36 UTC

MITRE assigned CVE-2014-4338 to this issue:

http://seclists.org/oss-sec/2014/q2/590

Comment 11 Martin Prpič 2014-10-29 15:36:53 UTC

IssueDescription:

A flaw was found in the way the cups-browsed daemon interpreted the "BrowseAllow" directive in the cups-browsed.conf file. An attacker able to add a malformed "BrowseAllow" directive to the cups-browsed.conf file could use this flaw to bypass intended access restrictions.

Comment 13 errata-xmlrpc 2014-11-03 18:30:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1795 https://rhn.redhat.com/errata/RHSA-2014-1795.html