CVE-2021-39921

Public on 2021-11-19
Modified on 2023-01-18
Description
A NULL pointer exception flaw was found in Wireshark. A process failure on crafted or malformed input in the Modbus dissector can cause a denial of service via a packet injection or crafted capture file.
Severity
Medium severity
Medium
CVSS v3 Base Score
7.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2023 wireshark 2023-02-17 ALAS2023-2023-038 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H