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wnpa-sec-2021-06 · DNP dissector crash

Summary

Name: DNP dissector crash

Docid: wnpa-sec-2021-06

Date: July 14, 2021

Affected versions: 3.4.0 to 3.4.6, 3.2.0 to 3.2.14

Fixed versions: 3.4.7, 3.2.15

References:

Wireshark issue 17462.
CVE-2021-22235.

Details

Description

The DNP dissector could crash.

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 3.4.7, 3.2.15 or later.