CVE-2005-3409: DoS through null pointer deference in exception handling

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

Toggle useless messages

Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Moritz Muehlenhoff <jmm@inutil.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

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

Hi,
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.
  CVE-2005-3409

Cheers,
        Moritz

-- 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)

Message #10 received at 337334-close@bugs.debian.org (full text, mbox, reply):

From: Alberto Gonzalez Iniesta <agi@inittab.org>

To: 337334-close@bugs.debian.org

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:

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

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 337334@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Alberto Gonzalez Iniesta <agi@inittab.org> (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 ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
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 <agi@inittab.org>
Changed-By: Alberto Gonzalez Iniesta <agi@inittab.org>
Description: 
 openvpn    - Virtual Private Network daemon
Closes: 336751 337334
Changes: 
 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)
Files: 
 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

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)

iD8DBQFDbyFCxRSvjkukAcMRAp+4AKC2Y1ozf7jzCiUrTHB+myyssklN+ACgqdw9
+e7R2/9Ib7HDIW8MCQQgIto=
=lLRy
-----END PGP SIGNATURE-----

Send a report that this bug log contains spam.