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Date: Thu, 3 Oct 2013 21:52:13 +0100
From: Pedro Ribeiro <pedrib@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request - VLC 2.0.0 to 2.0.8
On 1 October 2013 16:20, Pedro Ribeiro <pedrib@...il.com> wrote:
> Hi,
>
> I have discovered a denial of service / possible code execution in VLC via a
> crafted ASF file. This has been reported to VLC and was apparently fixed
> unintentionally in 2.0.8 with the entry "Improve handling of corrupt ASF
> files". Version 2.1.0 is not affected.
>
> The file contains a crafted ASF packet that causes VLC to crash on a read
> operation, with control of EDI and EAX. In the file attached you will find
> at starting offset 0x157AD the hex values 17 DE B4 71 in little endian,
> which attempts to use for a read operation. Control of other variables in
> the Demux function in asf.c is also possible by changing packet values
> before and after the offset as per the ASF specification.
>
> The file is located here:
> https://github.com/pedrib/PoC/blob/master/vlc-crash.asf
>
> I have not been able to obtain any program control so far, so at the moment
> this only crashes VLC. However someone more skilled might be able to control
> it.
>
> Can you please provide a CVE for this?
>
> Regards
> Pedro
Hi,
Do you need more information on this, do not consider it CVE-worthy or
just swamped with work at the moment? :)
Regards,
Pedro
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