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Wireshark SSCOP dissector fails to properly handle malformed packets

Vulnerability Note VU#696896

Original Release Date: 2006-10-25 | Last Revised: 2006-10-25

Overview

Wireshark contains a vulnerability in the SSCOP dissector that may cause a denial of service condition.

Description

Wireshark contains a vulnerability in the Service-Specific Connection Oriented Protocol (SSCOP) dissector.

Wireshark states that:
If the SSCOP dissector has a port range configured and the SSCOP payload protocol is Q.2931, a malformed packet could make the Q.2931 dissector use up available memory. No port range is configured by default.
Wireshark states that Wireshark versions 0.7.9 - 0.99.2 are vulnerable.

Note: Ethereal has changed its name to Wireshark.

Impact

By sending a malformed packet, a remote attacker may be able to cause the Q2931 dissector to exceed the available memory and cause a denial of service condition.

Solution

Update
Wireshark has released an updated product version (Wireshark 0.99.3)
.

Workaround

Wireshark provides a workaround in security document wnpa-sec-2006-02.

Vendor Information

696896
 

CVSS Metrics

Group Score Vector
Base
Temporal
Environmental

References

Acknowledgements

This vulnerability was reported in Wireshark document wnpa-sec-2006-02.

This document was written by Katie Steiner.

Other Information

CVE IDs: CVE-2006-4333
Severity Metric: 0.56
Date Public: 2006-08-25
Date First Published: 2006-10-25
Date Last Updated: 2006-10-25 18:03 UTC
Document Revision: 18

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