AusCERT - AL-2009.0114 -- [Win][UNIX/Linux] -- Firefox 3.0.4/2.0.0.18 and SeaMonkey 1.1.13 released to correct multiple vulnerabilities

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AL-2009.0114 -- [Win][UNIX/Linux] -- Firefox 3.0.4/2.0.0.18 and SeaMonkey 1.1.13 released to correct multiple vulnerabilities
Date: 17 August 2009

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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2009.0114 -- AUSCERT ALERT
                             [Win][UNIX/Linux]
          Firefox 3.0.4/2.0.0.18 and SeaMonkey 1.1.13 released to
                     correct multiple vulnerabilities
                              17 August 2009

===========================================================================

        AusCERT Alert Summary
        ---------------------

Product:              Firefox 3.0.3
                      Seamonkey 1.1.12
                      Thunderbird 2.0.17
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact:               Execute Arbitrary Code/Commands
                      Read-only Data Access
                      Cross-site Scripting
                      Reduced Security
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-0017 CVE-2008-4582 CVE-2008-5015
                      CVE-2008-5016 CVE-2008-5017 CVE-2008-5018
                      CVE-2008-5019 CVE-2008-5021 CVE-2008-5022
                      CVE-2008-5023 CVE-2008-5024 CVE-2008-6961
Member content until: Thursday, December 11 2008

Revision History:  August   17 2009: Added MFSA 2008-59
                   November 13 2008: Initial Release

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OVERVIEW

        Mozilla has released 9 advisories relating to Firefox,
        Thunderbird and Seamonkey describing a total of 11 vulnerabilities.
        Mozilla has rated 4 of these advisories as "Critical", 2 as "High",
        2 as "Moderate" and 1 as "Low" impact.

IMPACT

        According to Mozilla, the vulnerabilties corrected in this
        update are:

        o MFSA 2008-47 (CVE-2008-4582): "Locally saved .url shortcut files 
          could be used to read information stored in the local cache. An
          attacker could use this vulnerability to steal information from a
          victim's browser cache if they were able to get the victim to
          download two separate files, a .url shortcut and a HTML file." [1]

        o MFSA 2008-51 (CVE-2008-5015): "file: URIs are given chrome 
          privileges when opened in the same tab as a chrome page or 
          privileged about: page. This vulnerability could be used by an 
          attacker to run arbitrary JavaScript with chrome privileges." [2]

        o MFSA 2008-52 (CVE-2008-5016, CVE-2008-5017, CVE-2008-5018):
          "Mozilla developers identified and fixed several stability bugs
          in the browser engine used in Firefox and other Mozilla-based 
          products. Some of these crashes showed evidence of memory 
          corruption under certain circumstances and we presume that with
          enough effort at least some of these could be exploited to run
          arbitrary code." [3]

	o MFSA 2008-53 (CVE-2008-5019): "The browser's session restore
          feature can be used to violate the same-origin policy and run
          JavaScript in the context of another site. Any otherwise 
          unexploitable crash can be used to force the user into the session 
          restore state" and "This vulnerability could also be used by an
          attacker to run arbitrary JavaScript with chrome privileges" [4]

        o MFSA 2008-54 (CVE-2008-0017): "A flaw in the way Mozilla parses
          the http-index-format MIME type. By sending a specially crafted
          200 header line in the HTTP index response, an attacker can cause
          the browser to crash and run arbitrary code on the victim's
          computer." [5]

        o MFSA 2008-55 (CVE-2008-5021): "A flaw in part of Mozilla's DOM 
          constructing code. This vulnerability can be exploited by
          modifying certain properties of a file input element before it
          has finished initializing. When the blur method of the modified
          input element is called, uninitialized memory is accessed by the
          browser, resulting in a crash. This crash may be used by an
          attacker to run arbitrary code on a victim's computer." [6]

        o MFSA 2008-56 (CVE-2008-5022): "Same-origin check in
          nsXMLHttpRequest::NotifyEventListeners() could be bypassed. This
          vulnerability could be used to execute JavaScript in the context
          of a different website" [7]

        o MFSA 2008-57 (CVE-2008-5023): "The -moz-binding CSS property can
          be used to bypass security checks which validate codebase
          principals". This can be exploited to "run arbitrary JavaScript
          within the context of another site". [8]
  
        o MFSA 2008-58 (CVE-2008-5024): "An error in the method used to
          parse the default namespace in an E4X document. The error was
          caused by quote characters in the namespace not being properly
          escaped." Mozilla has not listed any potential exploit for this
          flaw. [9]

        o MFSA 2008-58 (CVE-2008-6961): Script access to .documentURI and
          and .textContent may allow a malicious mail message to be 
          "... able to glean personal information about the recipient from 
          the mailbox URI (such as computer account name) if the mail 
          recipient has enabled JavaScript in mail."[10]


MITIGATION

        These vulnerabilities have been fixed in Firefox 2.0.0.18, 
        Firefox 3.0.4 and SeaMonkey 1.1.13. Updated versions of these 
        programs are available from the Mozilla web site.

        There is not yet an updated release of Thunderbird 2.0.0.18. 
        Mozilla has recommended ensuring that JavaScript is not rendered
        by  Thunderbird. By default, JavaScript is not enabled in
        Thunderbird.


REFERENCES

       [1]  Mozilla Foundation Security Advisory 2008-47
            http://www.mozilla.org/security/announce/2008/mfsa2008-47.html
 
       [2]  Mozilla Foundation Security Advisory 2008-51
            http://www.mozilla.org/security/announce/2008/mfsa2008-51.html

       [3]  Mozilla Foundation Security Advisory 2008-52
            http://www.mozilla.org/security/announce/2008/mfsa2008-52.html

       [4]  Mozilla Foundation Security Advisory 2008-53 
            http://www.mozilla.org/security/announce/2008/mfsa2008-53.html

       [5]  Mozilla Foundation Security Advisory 2008-54
            http://www.mozilla.org/security/announce/2008/mfsa2008-54.html

       [6]  Mozilla Foundation Security Advisory 2008-55
            http://www.mozilla.org/security/announce/2008/mfsa2008-55.html

       [7]  Mozilla Foundation Security Advisory 2008-56
            http://www.mozilla.org/security/announce/2008/mfsa2008-56.html

       [8]  Mozilla Foundation Security Advisory 2008-57
            http://www.mozilla.org/security/announce/2008/mfsa2008-57.html

       [9]  Mozilla Foundation Security Advisory 2008-58
            http://www.mozilla.org/security/announce/2008/mfsa2008-58.html

       [10] Mozilla Foundation Security Advisory 2008-59
            http://www.mozilla.org/security/announce/2008/mfsa2008-59.html

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===========================================================================
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The University of Queensland
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