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wnpa-sec-2020-18 · RTPS dissector memory leak

Summary

Name: RTPS dissector memory leak

Docid: wnpa-sec-2020-18

Date: December 9, 2020

Affected versions: 3.4.0, 3.2.0 to 3.2.8

Fixed versions: 3.4.1, 3.2.9

References:

Wireshark issue 16994.
CVE-2020-26420.

Details

Description

The RTPS dissector could leak memory.

Impact

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

Resolution

Upgrade to Wireshark 3.4.1, 3.2.9 or later.