CVE-2021-22235

Gentoo Linux Security Advisory 202210-04

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file

Un bloqueo en el disector DNP en Wireshark versiones 3.4.0 hasta 3.4.6 y versiones 3.2.0 hasta 3.2.14, permite una denegación de servicio por medio de la inyección de paquetes o un archivo de captura diseñado

An update that fixes one vulnerability is now available. This update for wireshark fixes the following issues. Fixed DNP dissector crash. This update was imported from the SUSE:SLE-15:Update update project.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2021-07-15 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2025-11-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (6)

URL	Tag	Source
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22235.json	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html	Mailing List

URL	Date	SRC
https://gitlab.com/wireshark/wireshark/-/issues/17462	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202210-04	2022-11-03
https://www.debian.org/security/2021/dsa-5019	2022-11-03
https://www.wireshark.org/security/wnpa-sec-2021-05.html	2022-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wireshark Search vendor "Wireshark"		Wireshark Search vendor "Wireshark" for product "Wireshark"				>= 3.2.0 < 3.2.15 Search vendor "Wireshark" for product "Wireshark" and version " >= 3.2.0 < 3.2.15"		-		Affected
Wireshark Search vendor "Wireshark"		Wireshark Search vendor "Wireshark" for product "Wireshark"				>= 3.4.0 < 3.4.7 Search vendor "Wireshark" for product "Wireshark" and version " >= 3.4.0 < 3.4.7"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected