bugtraq - [SECURITY] [DSA 292-3] New mime-support packages really fix temporary file race conditions

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Message-ID: <m19Atkw-000oj6C__43761.77452873$1051723406@finlandia.Infodrom.North.DE>
Date: Wed, 30 Apr 2003 17:44:26 +0200 (CEST)
From: joey@...odrom.org (Martin Schulze)
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 292-3] New mime-support packages really fix temporary file race conditions


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- --------------------------------------------------------------------------
Debian Security Advisory DSA 292-3                     security@...ian.org
http://www.debian.org/security/                             Martin Schulze
April 30th, 2003                        http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : mime-support
Vulnerability  : insecure temporary file creation
Problem-Type   : local
Debian-specific: no

I am awfully and sincerely sorry.  Apparently, I wasn't able to assign
enough time to this issue and produced insufficiently tested
updates.  I'll do my best not to repeat this.

This update fixes the second problem from the original advisory:

  When run-mailcap is executed on a file with a potentially
  problematic filename, a temporary file is created (not insecurely
  anymore), removed and a symbolic link to this filename is created.
  An attacker could recreate the file before the symbolic link is
  created, forcing the display program to display different content.

For the stable distribution (woody) this problem has been corrected in
version 3.18-1.3.

For the old stable distribution (potato) this problem has been
corrected in version 3.9-1.3.

For the unstable distribution (sid) this problem has been fixed in
version 3.23-1.

We recommend that you upgrade your mime-support packages.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.9-1.3.dsc
      Size/MD5 checksum:      473 691d2e5ee8c934314278579b62b15404
    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.9-1.3.tar.gz
      Size/MD5 checksum:    91820 d0825b583b06f80a87280f8b1eafc8d6

  Architecture independent components:

    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.9-1.3_all.deb
      Size/MD5 checksum:    99266 4e4c0a921a163346e35e7cf273068fac


Debian GNU/Linux 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.18-1.3.dsc
      Size/MD5 checksum:      475 3bd3a28a8209f694188c4a3f645b30fd
    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.18-1.3.tar.gz
      Size/MD5 checksum:    72281 9ef6f8c5ecd653d559f0835fb3429422

  Architecture independent components:

    http://security.debian.org/pool/updates/main/m/mime-support/mime-support_3.18-1.3_all.deb
      Size/MD5 checksum:    67980 a90f0324ad8bffa5b7d00a97a3506175


  These files will probably be moved into the stable distribution on
  its next revision.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@...ts.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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