Bug 986386 (CVE-2013-4154) - CVE-2013-4154 libvirt: crash of libvirtd without guest agent configuration
Summary: CVE-2013-4154 libvirt: crash of libvirtd without guest agent configuration
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2013-4154
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 984821 986406
Blocks: 986392
TreeView+ depends on / blocked
 
Reported: 2013-07-19 16:07 UTC by Petr Matousek
Modified: 2023-05-11 23:39 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-07-19 16:12:08 UTC
Embargoed:

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Description Petr Matousek 2013-07-19 16:07:30 UTC 
If users haven't configured guest agent then qemuAgentCommand() will dereference a NULL 'mon' pointer.

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

References:
https://bugzilla.redhat.com/show_bug.cgi?id=984821
https://www.redhat.com/archives/libvir-list/2013-July/msg00992.html

Acknowledgements:

This issue was discovered by Alex Jia of Red Hat.
Comment 1 Petr Matousek 2013-07-19 16:12:08 UTC 
Statement:

Not vulnerable. This issue did not affect the versions of libvirt as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
Comment 2 Petr Matousek 2013-07-19 16:13:21 UTC 
Upstream fix:

http://libvirt.org/git/?p=libvirt.git;a=commit;h=96518d4316b711c72205117f8d5c967d5127bbb6
Comment 3 Petr Matousek 2013-07-19 17:05:47 UTC 
Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 986406]
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