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Gentoo Linux Security Advisory                           GLSA 200809-17
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http://security.gentoo.org/ 
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    Severity: Normal
       Title: Wireshark: Multiple Denials of Service
        Date: September 25, 2008
        Bugs: #236515
          ID: 200809-17

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Synopsis
=======
Multiple Denial of Service vulnerabilities have been discovered in
Wireshark.

Background
=========
Wireshark is a network protocol analyzer with a graphical front-end.

Affected packages
================
      -------------------------------------------------------------------
       Package                 /  Vulnerable  /               Unaffected
      -------------------------------------------------------------------
    1  net-analyzer/wireshark       < 1.0.3                     >= 1.0.3

Description
==========
The following vulnerabilities were reported:

* Multiple buffer overflows in the NCP dissector (CVE-2008-3146).

* Infinite loop in the NCP dissector (CVE-2008-3932).

* Invalid read in the tvb_uncompress() function when processing zlib
    compressed data (CVE-2008-3933).

* Unspecified error when processing Textronix .rf5 files
    (CVE-2008-3934).

Impact
=====
A remote attacker could exploit these vulnerabilities by sending
specially crafted packets on a network being monitored by Wireshark or
by enticing a user to read a malformed packet trace file, causing a
Denial of Service.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Wireshark users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-1.0.3"

References
=========
    [ 1 ] CVE-2008-3146
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3146 
    [ 2 ] CVE-2008-3932
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3932 
    [ 3 ] CVE-2008-3933
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3933 
    [ 4 ] CVE-2008-3934
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3934 

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

http://security.gentoo.org/glsa/glsa-200809-17.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 2008 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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