CVE-2020-26422

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of service via packet injection or crafted capture file

Un desbordamiento del búfer en el disector QUIC en Wireshark versiones 3.4.0 hasta 3.4.1, permite una denegación de servicio por medio de una inyección de paquetes o un archivo de captura diseñado

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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

2020-10-01 CVE Reserved
2020-12-21 CVE Published
2024-08-04 CVE Updated
2024-10-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (5)

URL	Tag	Source
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json	Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17073	Issue Tracking

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuApr2021.html	2022-09-02

URL	Date	SRC
https://security.gentoo.org/glsa/202101-12	2022-09-02
https://www.wireshark.org/security/wnpa-sec-2020-20.html	2022-09-02

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"				3.4.0 Search vendor "Wireshark" for product "Wireshark" and version "3.4.0"		-		Affected
Wireshark Search vendor "Wireshark"		Wireshark Search vendor "Wireshark" for product "Wireshark"				3.4.1 Search vendor "Wireshark" for product "Wireshark" and version "3.4.1"		-		Affected
Oracle Search vendor "Oracle"		Zfs Storage Appliance Kit Search vendor "Oracle" for product "Zfs Storage Appliance Kit"				8.8 Search vendor "Oracle" for product "Zfs Storage Appliance Kit" and version "8.8"		-		Affected