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Date: Thu, 10 Nov 2011 14:58:59 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...us.mitre.org>
CC: oss-security@...ts.openwall.com
Subject: CVE Request -- ProFTPD -- Response pool use-after-free flaw (ZDI-CAN-1420)
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] http://bugs.proftpd.org/show_bug.cgi?id=3711
Relevant upstream patch:
[2] http://bugs.proftpd.org/show_bug.cgi?id=3711#c1
References:
[3] https://secunia.com/advisories/46811/
[4] https://bugs.gentoo.org/show_bug.cgi?id=390075
[5] http://www.zerodayinitiative.com/advisories/upcoming/
[6] https://bugzilla.redhat.com/show_bug.cgi?id=752812
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).
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