Bug 1184431 – CVE-2015-0236 libvirt: missing ACL check for the VIR_DOMAIN_XML_SECURE flag in save images and snapshots objects

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Bug 1184431 - (CVE-2015-0236) CVE-2015-0236 libvirt: missing ACL check for the VIR_DOMAIN_XML_SECURE flag in save images and snapshots objects

Summary:	CVE-2015-0236 libvirt: missing ACL check for the VIR_DOMAIN_XML_SECURE flag i...

Status:	CLOSED ERRATA

Aliases:	CVE-2015-0236

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20150122,reported=2...
Keywords:	Security

Depends On:	1184076 1185769
Blocks:	1176178
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Reported:	2015-01-21 06:24 EST by Petr Matousek
Modified:	2016-01-21 05:31 EST (History)
CC List:	14 users (show)

See Also:
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 18:28:46 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2015:0323	normal	SHIPPED_LIVE	Low: libvirt security, bug fix, and enhancement update	2015-03-05 07:10:54 EST

Groups: None (edit)

Description Petr Matousek 2015-01-21 06:24:22 EST

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 17:22:06 EST

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

Comment 2 Martin Prpič 2015-01-26 04:08:19 EST

Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 1185769]

Comment 3 Martin Prpič 2015-01-26 04:09:40 EST

External References:

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

Comment 4 Fedora Update System 2015-02-14 22:06:55 EST

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 03:10:26 EST

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 02:49:24 EST

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

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