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Date: Wed, 29 May 2013 13:25:23 +0100
From: "Richard W.M. Jones" <rjones@...hat.com>
To: Jan Lieskovsky <jlieskov@...hat.com>
Cc: oss-security@...ts.openwall.com,
        "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE Request -- libguestfs (1.20.6 | 1.22.0 | 1.23.0 <= X <
 1.22.1 | 1.23.1): Denial of service due to a double-free when inspecting
 certain guest files / images

On Wed, May 29, 2013 at 08:21:42AM -0400, Jan Lieskovsky wrote:
> Hello Kurt, Steve, vendors,
> 
>   LibguestFS upstream has issued the following patch:
>   [1] https://github.com/libguestfs/libguestfs/commit/fa6a76050d82894365dfe32916903ef7fee3ffcd
> 
> to correct a double-free flaw in the virt-inspector / other virt-* tools,
> which could lead to denial of service if some of the tools were used by
> 3rd party applications for inspection of untrusted guest files / images:
> 
>   [2] https://www.redhat.com/archives/libguestfs/2013-May/msg00079.html
>   [3] https://www.redhat.com/archives/libguestfs/2013-May/msg00080.html
> 
> Could you allocate a CVE identifier for this?

Small adjustment to the subject line.

Just to be clear this affects:

1.20.x, x <= 6
1.21.x, all x (this is an obsolete development branch)
1.22.0
1.23.0

NOT affected are:

anything < 1.20
1.20.7 (fix backported to this stable version yesterday)
1.22.1 (fix backported to this stable version yesterday)
1.23.1 (this is the upstream version, fixed yesterday)

Credit for finding the bug goes to the Coverity static analyzer.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org

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