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Re: CVE request -- libvirt: double free of returned JSON array in qemuAgentGetVCPUs()


From: Kurt Seifried <kseifried () redhat com>
Date: Fri, 19 Jul 2013 10:53:00 -0600

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On 07/19/2013 10:12 AM, Petr Matousek wrote:
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 privileges to
that of libvirtd process.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=986383
https://bugzilla.redhat.com/show_bug.cgi?id=984821
https://www.redhat.com/archives/libvir-list/2013-July/msg01035.html

Upstream fix:
http://libvirt.org/git/?p=libvirt.git;a=commit;h=dfc692350a04a70b4ca65667c30869b3bfdaf034

Thanks,


Please use CVE-2013-4153 for this issue.

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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