Bug 875897

Summary:	cups: Privilege escalation due improper drop of privileges for the members (different than root) of SystemGroup group
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2012-11-13 06:39:18 UTC	Type:	---
Regression:	---	Mount Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jan Lieskovsky 2012-11-12 19:23:18 UTC

A privilege escalation flaw was found in the way cups, a Common Unix Printing System, performed demarcation of privileges for the members of SystemGroup, different from the privileged-user account (root). A remote attacker, member of some of the CUPS SystemGroup groups, could use this flaw to read / write arbitrary system file with the privileges of the user running the CUPS daemon.

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692791
[2] http://www.openwall.com/lists/oss-security/2012/11/10/5

Upstream bug report:
[3] http://www.cups.org/str.php?L4223 (private for now)

Comment 1 Tomas Hoger 2012-11-13 06:39:18 UTC


*** This bug has been marked as a duplicate of bug 875898 ***