wnpa-sec-2008-07 · Multiple problems in Wireshark

Summary

Name: Multiple problems in Wireshark

Docid: wnpa-sec-2008-07

Date: December 10, 2008

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

Fixed versions: 1.0.5

Details

Description

Wireshark 1.0.5 fixes the following vulnerabilities:

  • The SMTP dissector could consume excessive amounts of CPU and memory. Versions affected: 1.0.4
  • The WLCCP dissector could go into an infinte loop. Versions affected: 0.99.7 to 1.0.4

Impact

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.

Resolution

Upgrade to Wireshark 1.0.5 or later.

If are running Wireshark 1.0.4 or earlier (including Ethereal 0.99.0) and cannot upgrade, you can work around each of the problems listed above by doing the following:

  • Disable the SMTP and WLCCP dissectors.
    • Select Analyze→Enabled Protocols... from the menu.
    • Make sure "SMTP" and "WLCCP" are un-checked.
    • Click "Save", then click "OK".