Wireshark SSCOP dissector fails to properly handle malformed packets

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.

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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.

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Solution

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

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Workaround

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

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Vendor Information

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Wireshark __ Affected

Updated: October 24, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Please see Wireshark security document wnpa-sec-2006-02 for further information.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23696896 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.wireshark.org/security/wnpa-sec-2006-02.html&gt;
• <http://www.securityfocus.com/bid/19690&gt;
• <http://www.frsirt.com/english/advisories/2006/3370&gt;
• <http://securitytracker.com/id?1016736&gt;
• <http://secunia.com/advisories/21597&gt;
• <http://secunia.com/advisories/21649&gt;
• <http://secunia.com/advisories/21813&gt;
• <http://secunia.com/advisories/21619&gt;
• <http://secunia.com/advisories/21682&gt;
• <http://secunia.com/advisories/21885&gt;
• <http://xforce.iss.net/xforce/xfdb/28556&gt;
• <http://xforce.iss.net/xforce/xfdb/28553&gt;
• <https://issues.rpath.com/browse/RPL-597&gt;
• <http://www.itu.int/rec/T-REC-Q.2931/en&gt;

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: