wnpa-sec-2009-03 · PCNFSD vulnerability in Wireshark


Name: PCNFSD vulnerability in Wireshark

Docid: wnpa-sec-2009-03

Date: May 21, 2009

Affected versions: {{ start_version }} up to and including {{ end_version }}

Fixed versions: 1.0.8



Wireshark 1.0.8 fixes the following vulnerability:

  • The PCNFSD dissector could crash. Versions affected: 0.8.20 to 1.0.7


It may be possible to make Wireshark crash remotely or by convincing someone to read a malformed packet trace file.


Upgrade to Wireshark 1.0.8 or later.

If are running Wireshark 1.0.7 or earlier (including Ethereal) and cannot upgrade, you can work around each of the problems listed above by doing the following:

  • Disable the PCNFSD dissector:
    • Select Analyze→Enabled Protocols... from the menu.
    • Make sure "PCNFSD" is un-checked.
    • Click "Save", then click "OK".