Debian Bug report logs - #337334
CVE-2005-3409: DoS through null pointer deference in exception handling

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Package: openvpn; Maintainer for openvpn is Alberto Gonzalez Iniesta <>; Source for openvpn is src:openvpn.

Reported by: Moritz Muehlenhoff <>

Date: Thu, 3 Nov 2005 23:33:15 UTC

Severity: important

Tags: security

Fixed in version openvpn/2.0.5-1

Done: Alberto Gonzalez Iniesta <>

Bug is archived. No further changes may be made.

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Report forwarded to, Debian Security Team <>, Alberto Gonzalez Iniesta <>:
Bug#337334; Package openvpn. Full text and rfc822 format available.

Acknowledgement sent to Moritz Muehlenhoff <>:
New Bug report received and forwarded. Copy sent to Debian Security Team <>, Alberto Gonzalez Iniesta <>. Full text and rfc822 format available.

Message #5 received at (full text, mbox):

From: Moritz Muehlenhoff <>
To: Debian Bug Tracking System <>
Subject: CVE-2005-3409: DoS through null pointer deference in exception handling
Date: Fri, 04 Nov 2005 00:21:58 +0100
Package: openvpn
Severity: important
Tags: security

openvpn 2.0.4 fixes another security problem:

* Security fix -- Potential DoS vulnerability on the
  server in TCP mode.  If the TCP server accept() call
  returns an error status, the resulting exception handler
  may attempt to indirect through a NULL pointer, causing
  a segfault.  Affects all OpenVPN 2.0 versions.


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-1-686
Locale: LANG=C, LC_CTYPE=de_DE.ISO-8859-15@euro (charmap=ISO-8859-15)

Reply sent to Alberto Gonzalez Iniesta <>:
You have taken responsibility. Full text and rfc822 format available.

Notification sent to Moritz Muehlenhoff <>:
Bug acknowledged by developer. Full text and rfc822 format available.

Message #10 received at (full text, mbox):

From: Alberto Gonzalez Iniesta <>
Subject: Bug#337334: fixed in openvpn 2.0.5-1
Date: Mon, 07 Nov 2005 02:02:09 -0800
Source: openvpn
Source-Version: 2.0.5-1

We believe that the bug you reported is fixed in the latest version of
openvpn, which is due to be installed in the Debian FTP archive:

  to pool/main/o/openvpn/openvpn_2.0.5-1.diff.gz
  to pool/main/o/openvpn/openvpn_2.0.5-1.dsc
  to pool/main/o/openvpn/openvpn_2.0.5-1_i386.deb
  to pool/main/o/openvpn/openvpn_2.0.5.orig.tar.gz

A summary of the changes between this version and the previous one is

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
Alberto Gonzalez Iniesta <> (supplier of updated openvpn package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing

Hash: SHA1

Format: 1.7
Date: Mon,  7 Nov 2005 10:13:55 +0100
Source: openvpn
Binary: openvpn
Architecture: source i386
Version: 2.0.5-1
Distribution: unstable
Urgency: high
Maintainer: Alberto Gonzalez Iniesta <>
Changed-By: Alberto Gonzalez Iniesta <>
 openvpn    - Virtual Private Network daemon
Closes: 336751 337334
 openvpn (2.0.5-1) unstable; urgency=high
   * New upstream release. Urgency high due to security issues.
       - DoS vulnerability on the server in TCP mode.
         (CVE-2005-3409) (Closes: #337334)
       - Format string vulnerability in the foreign_option
         function in options.c could potentially allow a malicious
         or compromised server to execute arbitrary code on the
         client.  (CVE-2005-3393) (Closes: #336751)
 04f23b07dcce1188a10c0232746f7ec4 623 net optional openvpn_2.0.5-1.dsc
 4bd7a42991c93db23842a0992debe53b 662647 net optional openvpn_2.0.5.orig.tar.gz
 3e0467bc6ce587a7a69000b97e418fb9 58027 net optional openvpn_2.0.5-1.diff.gz
 2503099ce556ad0be7eb17cfdd580c35 320368 net optional openvpn_2.0.5-1_i386.deb

Version: GnuPG v1.4.2 (GNU/Linux)


Bug archived. Request was from Debbugs Internal Request <> to (Mon, 25 Jun 2007 04:26:13 GMT) Full text and rfc822 format available.

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