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             AUSCERT External Security Bulletin Redistribution

                    ESB-2007.0074 -- [Win][UNIX/Linux]
           Multiple problems in Wireshark (formerly Ethereal(R))
                        versions 0.10.14 to 0.99.4
                              5 February 2007

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Wireshark between 0.10.14 and 0.99.4
Publisher:            Wireshark
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-0459 CVE-2007-0458 CVE-2007-0457
                      CVE-2007-0456

Original Bulletin:
  http://www.wireshark.org/security/wnpa-sec-2007-01.html

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Name: Multiple problems in Wireshark (formerly Ethereal®) versions 0.10.14
      to 0.99.4
Docid: wnpa-sec-2007-01
Date: February 1, 2007
Versions affected: 0.10.14 up to and including 0.99.4

Description
Wireshark 0.99.5 fixes the following vulnerabilities:

  * The TCP dissector could hang or crash while reassembling HTTP packets.
    (Bug 1200)
    Versions affected: 0.99.2 to 0.99.4
    CVE-2007-0459
  * The HTTP dissector could crash.
    Versions affected: 0.99.3 to 0.99.4
    CVE-2007-0458
  * On some systems, the IEEE 802.11 dissector could crash.
    Versions affected: 0.10.14 to 0.99.4
    CVE-2007-0457
  * On some systems, the LLT dissector could crash.
    Versions affected: 0.99.3 to 0.99.4
    CVE-2007-0456 

Impact
It may be possible to make Wireshark or Ethereal crash or use up available
memory by injecting a purposefully malformed packet onto the wire or by
convincing someone to read a malformed packet trace file.

Resolution
Upgrade to Wireshark 0.99.5.

If are running Wireshark 0.99.4 or Ethereal 0.99.0 or earlier and cannot
upgrade, you can work around each of the problems listed above by doing the
following:

  * Disable the HTTP, IEEE 802.11, and LLT dissectors.
    o Select Analyze?Enabled Protocols... from the menu.
    o Make sure "HTTP", "IEEE 802.11", and "LLT" are un-checked.
    o Click "Save", then click "OK". 

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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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