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Category:   Application (Generic)  >   Wireshark Vendors:
Wireshark NCP Dissector and zlib Processing Bugs Let Remote Users Deny Service
SecurityTracker Alert ID:  1020819
SecurityTracker URL:
CVE Reference:   CVE-2008-3146, CVE-2008-3932, CVE-2008-3933, CVE-2008-3934   (Links to External Site)
Updated:  Sep 15 2008
Original Entry Date:  Sep 4 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.9.7 - 1.0.2
Description:   A vulnerability was reported in Wireshark. A remote user can cause denial of service conditions.

A remote user can send specially crafted NCP data to trigger a buffer overflow and cause the target service to crash or enter an infinite loop.

A remote user can also send a specially crafted zlib-compressed packet to cause the target service to crash.

A user can create a specially crafted Tektronix .rf5 file that, when loaded, will cause Wireshark to crash.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fix (1.0.3).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error, State error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Oct 2 2008 (Red Hat Issues Fix) Wireshark NCP Dissector and zlib Processing Bugs Let Remote Users Deny Service   (
Red Hat has released a fix for Red Hat Enterprise Linux 3, 4, and 5.

 Source Message Contents

[Original Message Not Available for Viewing]

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