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wnpa-sec-2023-26 · CP2179 dissector crash

Summary

Name: CP2179 dissector crash

Docid: wnpa-sec-2023-26

Date: August 23, 2023

Affected versions: 4.0.0 to 4.0.7, 3.6.0 to 3.6.15

Fixed versions: 4.0.8, 3.6.16

References:

Wireshark issue 19229.

Details

Description

The CP2179 protocol dissector could crash. Discovered by zenofex and WanderingGlitch.

Impact

It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.0.8, 3.6.16 or later.