- ----------------------------------------------------------------------------
Debian Security Advisory DSA-022-1                       security@debian.org 
Debian -- Security Information                                Martin Schulze
January 26, 2001
- ----------------------------------------------------------------------------

Package        : exmh
Vulnerability  : local insecure tempfile creation
Debian-specific: no

Former versions of the exmh program used /tmp for storing temporary
files.  No checks were made to ensure that nobody placed a symlink
with the same name in /tmp in the meantime and thus was vulnerable to
a symlink attack.  This could lead to a malicious local user being
able to overwrite any file writable by the user executing exmh.
Upstream developers have reported and fixed this.  The exmh program
now use /tmp/login now unless TMPDIR or EXMHTMPDIR is set.

We recommend you upgrade your exmh packages immediately.

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

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


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

  Potato was released for the alpha, arm, i386, m68k, powerpc and
  sparc architectures.  This package does not contain any architecture
  dependent data (i.e. no compiled programs).


  Source archives:

      
      MD5 checksum: 67cd5c52498b1dc120b608b151cbd44c
      
      MD5 checksum: 36f91fba778ff68881adb4022ae99403
      
      MD5 checksum: f3c6eedfa5720e236389e22234a57c24

  Architecture independent:

      
      MD5 checksum: 326c6374703977be603579435d328cf8


  These files will be moved into
     soon.

For not yet released architectures please refer to the appropriate
directory    .

- ----------------------------------------------------------------------------
For apt-get: deb  Debian -- Security Information  stable/updates main
For dpkg-ftp:    dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and  http://packages.debian.org/

Debian: 'exmh' temp file vulnerability

January 26, 2001
exmh creates temporary files in an insecure fasion, thus making it vulnerable to a symlink attack.

Summary

Former versions of the exmh program used /tmp for storing temporary
files. No checks were made to ensure that nobody placed a symlink
with the same name in /tmp in the meantime and thus was vulnerable to
a symlink attack. This could lead to a malicious local user being
able to overwrite any file writable by the user executing exmh.
Upstream developers have reported and fixed this. The exmh program
now use /tmp/login now unless TMPDIR or EXMHTMPDIR is set.

We recommend you upgrade your exmh packages immediately.

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

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


Debian GNU/Linux 2.2 alias potato

Potato was released for the alpha, arm, i386, m68k, powerpc and
sparc architectures. This package does not contain any architecture
dependent data (i.e. no compiled programs).


Source archives:


MD5 checksum: 67cd5c52498b1dc120b608b151cbd44c

MD5 checksum: 36f91fba778ff68881adb4022ae99403

MD5 checksum: f3c6eedfa5720e236389e22234a57c24

Architecture independent:


MD5 checksum: 326c6374703977be603579435d328cf8


These files will be moved into
soon.

For not yet released architectures please refer to the appropriate
directory .

For apt-get: deb Debian -- Security Information stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/




Severity
Package : exmh
Vulnerability : local insecure tempfile creation
Debian-specific: no

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