oss-security - CVE Request -- ClearSilver (neo_cgi) -- Format string flaw by processing CGI error messages in Python module

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Date: Sun, 27 Nov 2011 18:21:15 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...us.mitre.org>
CC: oss-security@...ts.openwall.com, Leo Iannacone <l3on@...ntu.com>,
        Colin Watson <cjwatson@...ian.org>
Subject: CVE Request -- ClearSilver (neo_cgi) -- Format string flaw by processing
 CGI error messages in Python module

Hello Kurt, Steve, vendors,

   a format string flaw was found in the Python CGI Kit (neo_cgi)
module of ClearSilver, a language-neutral HTML templating system,
processed certain input, leading to Common Gateway Interface (CGI)
script errors. A remote attacker could provide a specially-crafted
input, which once processed by an application, using the Python
language API of ClearSilver neo_cgi module, could lead to that
particular application crash, or, potentially arbitrary code
execution with the privileges of the user running the application.

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649322
[2] https://bugzilla.redhat.com/show_bug.cgi?id=757542

Patch, proposed by the issue reporter to the Debian Bug Tracking System:
[3] 
http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=fix-cgi-error-format-security.patch;att=1;bug=649322

Could you allocate a CVE id for this issue?

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

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