Bug 891942 (CVE-2012-6094)

Summary:	CVE-2012-6094 cups: 'Listen localhost:631' option not honoured correctly on IPv6-enabled systems when systemd used for CUPS socket activation
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:	jpopelka, jrusnack, twaugh
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:	2019-06-10 10:59:50 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:	842365, 891945
Bug Blocks:

Description Jan Lieskovsky 2013-01-04 15:21:33 UTC

During the process of CUPS socket activation code refactoring in favour of systemd capability a security flaw was found in the way CUPS service honoured Listen localhost:631 cupsd.conf configuration option. The setting was recognized properly for IPv4-enabled systems, but failed to be correctly applied for IPv6-enabled systems. As a result, a remote attacker could use this flaw to obtain (unauthorized) access to the CUPS web-based administration interface.

References:
[1] https://bugzilla.novell.com/show_bug.cgi?id=795624

Comment 1 Jan Lieskovsky 2013-01-04 15:23:53 UTC

This issue did NOT affect the versions of the cups package, as shipped with Red Hat Enterprise Linux 5 and 6 as they did not use systemd capability for CUPS socket activation yet.

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This issue affects the versions of the cups package, as shipped with Fedora release of 16 and 17. Please schedule an update.

Comment 2 Jan Lieskovsky 2013-01-04 15:24:33 UTC

Created cups tracking bugs for this issue

Affects: fedora-all [bug 891945]

Comment 3 Jan Lieskovsky 2013-01-04 15:31:42 UTC

CVE Request:
  http://www.openwall.com/lists/oss-security/2013/01/04/1

Comment 4 Jan Lieskovsky 2013-01-04 15:36:24 UTC

Statement:

Not vulnerable. This issue did not affect the versions of cups as shipped with Red Hat Enterprise Linux 5 and 6 as they did not use the systemd capability for CUPS socket activation yet.

Comment 5 Vincent Danen 2013-01-07 16:10:19 UTC

This was assigned CVE-2012-6094:

http://www.openwall.com/lists/oss-security/2013/01/04/5

Comment 8 Fedora Update System 2013-02-26 02:41:53 UTC

cups-1.5.4-18.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.