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Debian Security Advisory DSA 202-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
December 3rd, 2002                      http://www.debian.org/security/faq
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Package        : im
Vulnerability  : temporary files
Problem-Type   : local
Debian-specific: no

Tatsuya Kinoshita discovered that IM, which contains interface
commands and Perl libraries for E-mail and NetNews, creates temporary
files insecurely.

 1. The impwagent program creates a temporary directory in an insecure
    manner in /tmp using predictable directory names without checking
    the return code of mkdir, so it's possible to seize a permission
    of the temporary directory by local access as another user.

 2. The immknmz program creates a temporary file in an insecure manner
    in /tmp using a predictable filename, so an attacker with local
    access can easily create and overwrite files as another user.

These problems have been fixed in version 141-18.1 for the current
stable distribution (woody), in version 133-2.2 of the old stable
distribution (potato) and in version 141-20 for the unstable
distribution (sid).

We recommend that you upgrade your IM package.

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/i/im/im_133-2.2.dsc
      Size/MD5 checksum:      513 da21bcdcce62f783b15750469140595e
    http://security.debian.org/pool/updates/main/i/im/im_133-2.2.diff.gz
      Size/MD5 checksum:     6929 0669a546380d3e2d702f1ecd3ef6fd7b
    http://security.debian.org/pool/updates/main/i/im/im_133.orig.tar.gz
      Size/MD5 checksum:   205055 df14f9a251a8d47fc045b6303090be47

  Architecture independent components:

    http://security.debian.org/pool/updates/main/i/im/im_133-2.2_all.deb
      Size/MD5 checksum:   217576 15a164603f65eb355f97515aaa97340a


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

  Source archives:

    http://security.debian.org/pool/updates/main/i/im/im_141-18.1.dsc
      Size/MD5 checksum:      568 86a87c81e159d54359eeac2c3c383ffb
    http://security.debian.org/pool/updates/main/i/im/im_141-18.1.diff.gz
      Size/MD5 checksum:    14110 2cb6b858ccda19f96b3c5315a48a41c0
    http://security.debian.org/pool/updates/main/i/im/im_141.orig.tar.gz
      Size/MD5 checksum:   207576 9ecd2d6009048f1fecbc7b2e0e8cd489

  Architecture independent components:

    http://security.debian.org/pool/updates/main/i/im/im_141-18.1_all.deb
      Size/MD5 checksum:   217416 41a6ad3bc0b0591ba180dd5d646387f9


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

Survey on the use of Debian GNU/Linux 2.2 alias potato:
http://lists.debian.org/debian-devel-announce-0211/msg00001.html

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

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