ANNOUNCEMENT: Live Wireshark University & Allegro Packets online APAC Wireshark Training Session
April 17th, 2024 | 14:30-16:00 SGT (UTC+8) | Online

wnpa-sec-2021-04 · MS-WSP dissector excessive memory consumption

Summary

Name: MS-WSP dissector excessive memory consumption

Docid: wnpa-sec-2021-04

Date: April 21, 2021

Affected versions: 3.4.0 to 3.4.4, 3.2.0 to 3.2.12

Fixed versions: 3.4.5, 3.2.13

References:

Wireshark issue 17331.
CVE-2021-22207.

Details

Description

The MS-WSP dissector could consume excessive amounts of 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 3.4.5, 3.2.13 or later.