wnpa-sec-2020-12 · TCP dissector crash

Summary

Name: TCP dissector crash

Docid: wnpa-sec-2020-12

Date: September 23, 2020

Affected versions: 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, 2.6.0 to 2.6.20

Fixed versions: 3.2.7, 3.0.14, 2.6.20

References:
Wireshark issue 16816
CVE-2020-25862

Details

Description

The TCP 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 3.2.7, 3.0.14, 2.6.20 or later.