full-disclosure - [ GLSA 200409-24 ] Foomatic: Arbitrary command execution in foomatic-rip filter

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From: condordes at gentoo.org (Joshua J. Berry)
Subject: [ GLSA 200409-24 ] Foomatic: Arbitrary command execution in foomatic-rip filter

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Gentoo Linux Security Advisory                           GLSA 200409-24
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Foomatic: Arbitrary command execution in foomatic-rip
            filter
      Date: September 20, 2004
      Bugs: #64166
        ID: 200409-24

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Synopsis
========

The foomatic-rip filter in foomatic-filters contains a vulnerability
which may allow arbitrary command execution on the print server.

Background
==========

Foomatic is a system for connecting printer drivers with spooler
systems such as CUPS and LPD. The foomatic-filters package contains
wrapper scripts which are designed to be used with Foomatic.

Affected packages
=================

    -------------------------------------------------------------------
     Package                     /  Vulnerable  /           Unaffected
    -------------------------------------------------------------------
  1  net-print/foomatic              <= 3.0.1                 >= 3.0.2
  2  net-print/foomatic-filters      <= 3.0.1                 >= 3.0.2
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

Description
===========

There is a vulnerability in the foomatic-filters package. This
vulnerability is due to insufficient checking of command-line
parameters and environment variables in the foomatic-rip filter.

Impact
======

This vulnerability may allow both local and remote attackers to execute
arbitrary commands on the print server with the permissions of the
spooler (oftentimes the "lp" user).

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All foomatic users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=net-print/foomatic-3.0.2"
    # emerge ">=net-print/foomatic-3.0.2"

PLEASE NOTE: You should update foomatic, instead of foomatic-filters.
This will help to ensure that all other foomatic components remain
functional.

References
==========

  [ 1 ] Foomatic Announcement
        http://www.linuxprinting.org/pipermail/foomatic-devel/2004q3/001996.html
  [ 2 ] Mandrakesoft Security Advisory
        http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:094
  [ 3 ] CAN 2004-0801
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0801

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200409-24.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0
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