full-disclosure - [ GLSA 200709-18 ] Bugzilla: Multiple vulnerabilities

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Date: Sun, 30 Sep 2007 22:23:17 +0200
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200709-18 ] Bugzilla: Multiple
	vulnerabilities

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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@...too.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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