Bug 855140 (CVE-2012-4411)

Summary:	CVE-2012-4411 xen: qemu: guest administrator can access qemu monitor console
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	agordeev, anton, berrange, dhoward, drjones, imammedo, jforbes, kraxel, lersek, lwang, m.a.young, mrezanin, pbonzini, plougher, rcvalle, sforsber, tburke, virt-maint, xen-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=important,public=20120906,reported=20120906,source=upstream,cvss2=7.4/AV:A/AC:M/Au:S/C:C/I:C/A:C,rhel-5/kernel-xen=notaffected,fedora-all/xen=affected,cwe=CWE-284
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-08-24 09:58:14 EDT	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---
Bug Depends On:	855141
Bug Blocks:	855143

Description Petr Matousek 2012-09-06 15:18:57 EDT

A guest administrator who is granted access to the graphical console
of a Xen guest can access the qemu monitor.  The monitor can be used
to access host resources.

A malicious guest administrator can access host resources (perhaps
belonging to other guests or the underlying system) and may be able to
escalate their privilege to that of the host.

References:
http://seclists.org/oss-sec/2012/q3/390

Acknowledgements:

Red Hat would like to thank the Xen project for reporting this issue.

Comment 2 Petr Matousek 2012-09-06 15:20:58 EDT

Statement:

Not vulnerable.

This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.

This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.

Comment 3 Petr Matousek 2012-09-06 15:21:54 EDT

Created xen tracking bugs for this issue

Affects: fedora-all [bug 855141]

Comment 5 Fedora Update System 2012-09-17 13:45:13 EDT

xen-4.1.3-4.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2012-09-17 14:00:45 EDT

xen-4.1.3-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2012-09-17 19:19:07 EDT

xen-4.1.3-4.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.