*Name:* Multiple problems in Ethereal 0.10.4

*Docid:* enpa-sa-00015

*Date:* July 6, 2004

*Versions affected:* 0.8.15 up to and including 0.10.4

*Severity:* *High*


    Details

*Description:*

Issues have been discovered in the following protocol dissectors:

    * The iSNS dissector could make Ethereal abort in some cases.
      (0.10.3 - 0.10.4) CAN-2004-0633
      <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0633>
    * SMB SID snooping could crash if there was no policy name for a
      handle. (0.9.15 - 0.10.4) CAN-2004-0634
      <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0634>
    * The SNMP dissector could crash due to a malformed or missing
      community string. (0.8.15 - 0.10.4) CAN-2004-0635
      <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0635>

*Impact:*

It may be possible to make Ethereal crash or run arbitrary code by
injecting a purposefully malformed packet onto the wire or by convincing
someone to read a malformed packet trace file.

*Resolution:*

Upgrade to 0.10.5.

If you are running a version prior to 0.10.5 and you cannot upgrade, you
can disable all of the protocol dissectors listed above by selecting
/Analyze->Enabled Protocols.../ and deselecting them from the list. For
SMB, you can alternatively disable SID snooping in the SMB protocol
preferences. However, it is strongly recommended that you upgrade to
0.10.5.

Please send support questions about Ethereal to the
ethereal-users[AT]ethereal.com <mailto:ethereal-users[AT]ethereal.com>
mailing list.
For corrections/additions/suggestions for this web page (and *not*
Ethereal support questions), please send email to
ethereal-web[AT]ethereal.com <mailto:ethereal-web[AT]ethereal.com> .
Last modified: Thu, July 08 2004.