Bug 683650 (CVE-2011-1146)

Summary:	CVE-2011-1146 libvirt: several API calls do not honour read-only connection
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	aquini, berrange, clalance, crobinso, dallan, dyuan, eblake, gren, itamar, jfehlig, jforbes, jiachen, jlieskov, jyang, laine, llim, pmatouse, security-response-team, veillard, virt-maint, virt-maint, xen-maint
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:	2013-04-15 21:48:32 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:	683651, 683652, 683653, 683654, 683655
Bug Blocks:

Description Petr Matousek 2011-03-09 23:03:06 UTC

Description of problem:
It has been found that several libvirt API calls (virNodeDeviceDettach, virNodeDeviceReset, virNodeDeviceReAttach, virDomainRevertToSnapshot, virDomainSnapshotDelete and virConnectDomainXMLToNative) did not honour read-only connection. Local attacker could use this flaw to crash the server (DoS) or possibly escalate his privileges.

Comment 3 Petr Matousek 2011-03-09 23:11:31 UTC

Created libvirt tracking bugs for this issue

Affects: fedora-all [bug 683655]

Comment 4 Jim Fehlig 2011-03-10 17:42:20 UTC

Should virNodeDeviceReAttach also be added to the list?

Comment 5 Petr Matousek 2011-03-10 21:19:44 UTC

(In reply to comment #4)
> Should virNodeDeviceReAttach also be added to the list?

Yes, I omitted it by mistake. Thanks Jim.

Comment 6 Daniel Veillard 2011-03-14 06:53:38 UTC

Also added virConnectDomainXMLToNative() after a full review and commited
upstream:

http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=71753cb7f7a16ff800381c0b5ee4e99eea92fed3;hp=13c00dde3171b3a38d23cceb3f9151cb6cac3dad

Daniel

Comment 8 errata-xmlrpc 2011-03-28 16:47:40 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2011:0391 https://rhn.redhat.com/errata/RHSA-2011-0391.html