CVE-2022-20770

ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.

El 20 de abril de 2022, fue divulgada la siguiente vulnerabilidad en ClamAV scanning library versiones 0.103.5 y anteriores y 0.104.2 y anteriores: Una vulnerabilidad en el analizador de archivos CHM de Clam AntiVirus (ClamAV) versiones 0.104.0 hasta 0.104.2 y LTS versión 0.103.5 y anteriores, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio en un dispositivo afectado. Para una descripción de esta vulnerabilidad, vea el blog de ClamAV. Este aviso será actualizado a medida que esté disponible información adicional

*Credits: N/A

CVSS Scores

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

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-11-02 CVE Reserved
2022-05-04 CVE Published
2024-11-06 CVE Updated
2024-11-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2022/06/msg00004.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56	2023-11-07
https://security.gentoo.org/glsa/202310-01	2023-11-07
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-prVGcHLd	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Clamav Search vendor "Clamav"		Clamav Search vendor "Clamav" for product "Clamav"				<= 0.103.5 Search vendor "Clamav" for product "Clamav" and version " <= 0.103.5"		lts		Affected
Clamav Search vendor "Clamav"		Clamav Search vendor "Clamav" for product "Clamav"				>= 0.104.0 <= 0.104.2 Search vendor "Clamav" for product "Clamav" and version " >= 0.104.0 <= 0.104.2"		-		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 1.16.3 Search vendor "Cisco" for product "Secure Endpoint" and version " < 1.16.3"		macos		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 1.17.2 Search vendor "Cisco" for product "Secure Endpoint" and version " < 1.17.2"		linux		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 7.5.5 Search vendor "Cisco" for product "Secure Endpoint" and version " < 7.5.5"		windows		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				>= 1.18.0 < 1.18.2 Search vendor "Cisco" for product "Secure Endpoint" and version " >= 1.18.0 < 1.18.2"		linux		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				>= 1.18.0 < 1.18.2 Search vendor "Cisco" for product "Secure Endpoint" and version " >= 1.18.0 < 1.18.2"		macos		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				36 Search vendor "Fedoraproject" for product "Fedora" and version "36"		-		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