CVE-2020-9429

Publication date 27 February 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Wireshark 3.2.0 to 3.2.1, the WireGuard dissector could crash. This was addressed in epan/dissectors/packet-wireguard.c by handling the situation where a certain data structure intentionally has a NULL value.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
wireshark	19.10 eoan	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

How can I get the fixes?
What do statuses mean?

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

MITRE
NVD
Launchpad
Debian

Other references

https://www.wireshark.org/security/wnpa-sec-2020-06.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16394
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=73c5fff899f253c44a72657048aec7db6edee571
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=a2530f740d67d41908e84434bb5ec99480c2ac2e
https://www.cve.org/CVERecord?id=CVE-2020-9429