Bug 986383 - (CVE-2013-4153) CVE-2013-4153 libvirt: double free of returned JSON array in qemuAgentGetVCPUs()
CVE-2013-4153 libvirt: double free of returned JSON array in qemuAgentGetVCPUs()
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20130716,repo...
: Security
Depends On: 984821 986408
Blocks: 986392
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Reported: 2013-07-19 12:01 EDT by Petr Matousek
Modified: 2013-07-19 15:26 EDT (History)
14 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-07-19 12:03:35 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Petr Matousek 2013-07-19 12:01:37 EDT
A part of the returned monitor response was freed twice and caused crashes of the daemon when using guest agent cpu count retrieval.

A remote user able to issue commands to libvirt daemon could use this flaw to crash libvirtd or, potentially, escalate their privilages to that of libvirtd process.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=984821
https://www.redhat.com/archives/libvir-list/2013-July/msg01035.html

Acknowledgements:

This issue was discovered by Petr Krempa of Red Hat.
Comment 1 Petr Matousek 2013-07-19 12:03:35 EDT
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 3 Petr Matousek 2013-07-19 13:09:59 EDT
Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 986408]

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