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Ethereal contains multiple one-byte buffer overflows in several dissectors

Vulnerability Note VU#641013

Original Release Date: 2003-05-12 | Last Revised: 2004-08-19


Ethereal is a network traffic analysis package. Several packet dissectors contain a vulnerability that may cause a denial-of-service situation.


Several packet dissectors for Ethereal contain a one-byte buffer overflow vulnerability. According to the Ethereal Advisory, tvb_get_nstringz() and tvb_get_nstringz0() were used in an unsafe manner.

Versions 0.9.11 and earlier of dissectors for AIM, GIOP Gryphon, OSPF, PPTP, Quake, Quake2, Quake3, Rsync, SMB, SMPP, and TSP are affected.


It may be possible for a remote attacker to crash the program or run arbitrary code on the system via a crafted packet.


Upgrade to version 0.9.12 which resolves this issue.

Vendor Information

Affected   Unknown   Unaffected


Updated:  May 12, 2003



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


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CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



Thanks to Timo Sirainen for reporting this vulnerability.

This document was written by Jason A Rafail and is based upon information in the Ethereal Advisory.

Other Information

CVE IDs: None
Severity Metric: 5.99
Date Public: 2003-05-01
Date First Published: 2003-05-12
Date Last Updated: 2004-08-19 15:29 UTC
Document Revision: 13

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