Bug 1184431 (CVE-2015-0236)

Summary:	CVE-2015-0236 libvirt: missing ACL check for the VIR_DOMAIN_XML_SECURE flag in save images and snapshots objects
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aavati, berrange, eblake, jdenemar, jrusnack, nlevinki, pkrempa, rbalakri, rfortier, security-response-team, shaines, smohan, ssaha, vbellur
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	It was discovered that the virDomainSnapshotGetXMLDesc() and virDomainSaveImageGetXMLDesc() functions did not sufficiently limit the usage of the VIR_DOMAIN_XML_SECURE flag when fine-grained ACLs were enabled. A remote attacker able to establish a connection to libvirtd could use this flaw to obtain certain sensitive information from the domain XML file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-19 22:28:46 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:	1184076, 1185769
Bug Blocks:	1176178

Description Petr Matousek 2015-01-21 11:24:22 UTC

The XML getters for for save images and snapshots objects don't check ACLs
for the VIR_DOMAIN_XML_SECURE flag and might possibly dump security sensitive
information.

A remote attacker able to establish a connection to libvirtd
could use this flaw to cause leak certain limited information from the
domain xml file.

Acknowledgements:

This issue was found by Luyao Huang of Red Hat.

Comment 1 Eric Blake 2015-01-22 22:22:06 UTC

Upstream security notice:
http://security.libvirt.org/2015/0001.html

Comment 2 Martin Prpič 2015-01-26 09:08:19 UTC

Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 1185769]

Comment 3 Martin Prpič 2015-01-26 09:09:40 UTC

External References:

http://security.libvirt.org/2015/0001.html

Comment 4 Fedora Update System 2015-02-15 03:06:55 UTC

libvirt-1.2.9.2-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2015-02-17 08:10:26 UTC

libvirt-1.1.3.9-1.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 errata-xmlrpc 2015-03-05 07:49:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0323 https://rhn.redhat.com/errata/RHSA-2015-0323.html