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CVE-2021-39928

Published: 18 November 2021

NULL pointer exception in the IEEE 802.11 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
wireshark
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needed

hirsute Ignored
(end of life)
jammy Needed

trusty Needs triage

upstream
Released (3.4.10)
impish Ignored
(end of life)
xenial Needs triage

kinetic Ignored
(end of life, was needed)
lunar Not vulnerable
(3.6.7-1)
mantic Not vulnerable
(3.6.7-1)
Patches:
upstream: https://gitlab.com/wireshark/wireshark/-/commit/0b473c01ab38e3b7debeeb4df82423fe53d0ff54

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H