wnpa-sec-2011-06 · DECT, NFS, and X.509if vulnerabilities in Wireshark


Name: DECT, NFS, and X.509if vulnerabilities in Wireshark

Docid: wnpa-sec-2011-06

Date: April 15, 2011

Affected versions: {{ start_version }}

Fixed versions: 1.4.5

Related: wnpa-sec-2011-05 (X.509if vulnerability in Wireshark version 1.2.0 to 1.2.14 )



Wireshark 1.4.5 fixes the following vulnerabilities:

  • The NFS dissector could crash on Windows. (Bug 5209)
    Versions affected: 1.4.0 to 1.4.4.
  • The X.509if dissector could crash. (Bug 5754, Bug 5793)
    Versions affected: 1.2.0 to 1.2.15 and 1.4.0 to 1.4.4.
  • Paul Makowski from SEI/CERT discovered that the DECT dissector could overflow a buffer. He verified that this could allow remote code execution on many platforms.
    Versions affected: 1.4.0 to 1.4.4.


It may be possible to make Wireshark crash by injecting a series of malformed packets onto the wire or by convincing someone to read a malformed packet trace file.


Upgrade to Wireshark 1.4.5 or later.

If are running Wireshark 1.4.4 or earlier (including Ethereal) and cannot upgrade, you can work around the problem listed above by doing the following:

  • Disable the DECT, NFS (if you\'re running Windows), and X.509if dissectors:
    • Select Analyze→Enabled Protocols... from the menu.
    • Make sure "DECT", "NFS", and "X.509if" are un-checked.
    • Click "Save", then click "OK".