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Date: Thu, 10 Nov 2011 09:20:11 -0700
From: Kurt Seifried <>
CC: Jan Lieskovsky <>,
        "Steven M. Christey" <>
Subject: Re: CVE Request -- ProFTPD -- Response pool use-after-free
 flaw (ZDI-CAN-1420)

On 11/10/2011 06:58 AM, Jan Lieskovsky wrote:
> Hello Kurt, Steve, vendors,
>   a use-after-free flaw was found in the way ProFTPD, an enhanced FTP
> server, performed retrieval of the response pool for the old command
> (when ProFTPD was in the midst of the data transfer, when new command
> arrived) used by the Response API. A remote attacker could provide a
> specially-crafted request (resulting in a need the server to handle an
> exceptional condition), leading to memory corruption and potentially
> arbitrary code execution, with the privileges of the user running the
> proftpd server.
> Upstream bug report:
> [1]
> Relevant upstream patch:
> [2]
> References:
> [3]
> [4]
> [5]
> [6]
> Could you allocate a CVE id for this?
> Thank you && Regards, Jan.
> -- 
> Jan iankko Lieskovsky / Red Hat Security Response Team
> P.S.: According to the upstream bug report [1], the ZDI-CAN-1420
>       issue has been disclosed 2011-10-28, thus grepped OSS
>       archives for CVE request due this proftpd deficiency,
>       and there doesn't seem to be one yet (also ZDI-CAN-1420
>       doesn't seem to reference a CVE id).
Please use CVE CVE-2011-4130 for this issue.


-Kurt Seifried / Red Hat Security Response Team

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