[ GLSA 200709-18 ] Bugzilla: Multiple vulnerabilities

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200709-18
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Bugzilla: Multiple vulnerabilities
      Date: September 30, 2007
      Bugs: #190112
        ID: 200709-18

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Synopsis
========

Bugzilla contains several vulnerabilities, some of them possibly
leading to the remote execution of arbitrary code.

Background
==========

Bugzilla is a web application designed to help with managing software
development.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  www-apps/bugzilla       < 3.0.1                        *>= 2.20.5
                                                            *>= 2.22.3
                                                              >= 3.0.1

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

Masahiro Yamada found that from the 2.17.1 version, Bugzilla does not
properly sanitize the content of the "buildid" parameter when filing
bugs (CVE-2007-4543). The next two vulnerabilities only affect Bugzilla
2.23.3 or later, hence the stable Gentoo Portage tree does not contain
these two vulnerabilities: Loic Minier reported that the
"Email::Send::Sendmail()" function does not properly sanitise "from"
email information before sending it to the "-f" parameter of
/usr/sbin/sendmail (CVE-2007-4538), and Frédéric Buclin discovered
that the XML-RPC interface does not correctly check permissions in the
time-tracking fields (CVE-2007-4539).

Impact
======

A remote attacker could trigger the "buildid" vulnerability by sending
a specially crafted form to Bugzilla, leading to a persistent XSS, thus
allowing for theft of credentials. With Bugzilla 2.23.3 or later, an
attacker could also execute arbitrary code with the permissions of the
web server by injecting a specially crafted "from" email address and
gain access to normally restricted time-tracking information through
the XML-RPC service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Bugzilla users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose www-apps/bugzilla

References
==========

  [ 1 ] CVE-2007-4538
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4538
  [ 2 ] CVE-2007-4539
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4539
  [ 3 ] CVE-2007-4543
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4543

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

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

  http://security.gentoo.org/glsa/glsa-200709-18.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 () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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/2.5

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