Bug 1006173 (CVE-2013-4296)

Summary:	CVE-2013-4296 libvirt: invalid free in remoteDispatchDomainMemoryStats
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acathrow, berrange, dallan, eblake, jdenemar, jkurik, pfrields, security-response-team
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:	2013-12-12 21:35:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1006174, 1006175, 1006176, 1009667
Bug Blocks:	1006179, 1006244

Description Petr Matousek 2013-09-10 07:16:49 UTC

The 'stats' variable in remoteDispatchDomainMemoryStats function was not initialized to NULL, so if some early validation of the RPC call fails, it is possible to jump to the 'cleanup' label and VIR_FREE an uninitialized pointer.

A remote user able to issue commands to libvirt daemon could use this flaw to crash libvirtd.

Acknowledgements:

This issue was discovered by Daniel P. Berrange of Red Hat.

Comment 5 Petr Matousek 2013-09-18 20:05:43 UTC

Upstream commit:

  http://libvirt.org/git/?p=libvirt.git;a=commit;h=e7f400a110e2e3673b96518170bfea0855dd82c0

Comment 6 Petr Matousek 2013-09-18 20:07:50 UTC

Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 1009667]

Comment 7 errata-xmlrpc 2013-09-19 18:08:58 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1272 https://rhn.redhat.com/errata/RHSA-2013-1272.html

Comment 8 Fedora Update System 2013-10-01 02:14:33 UTC

libvirt-0.10.2.8-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2013-10-02 06:40:39 UTC

libvirt-1.0.5.6-2.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2013-10-12 04:33:45 UTC

libvirt-1.1.3-2.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.