CVE-2023-20197

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to an incorrect check for completion when a file is decompressed, which may result in a loop condition that could cause the affected software to stop responding. An attacker could exploit this vulnerability by submitting a crafted HFS+ filesystem image to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to stop responding, resulting in a DoS condition on the affected software and consuming available system resources.
For a description of this vulnerability, see the ClamAV blog .

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-10-27 CVE Reserved
2023-08-16 CVE Published
2024-08-02 CVE Updated
2024-08-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-rNwNEEee	2024-01-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 1.22.0 Search vendor "Cisco" for product "Secure Endpoint" and version " < 1.22.0"		linux		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 1.22.0 Search vendor "Cisco" for product "Secure Endpoint" and version " < 1.22.0"		macos		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				< 7.5.13.21586 Search vendor "Cisco" for product "Secure Endpoint" and version " < 7.5.13.21586"		windows		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Search vendor "Cisco" for product "Secure Endpoint"				>= 8.0.1.21160 < 8.1.7.21585 Search vendor "Cisco" for product "Secure Endpoint" and version " >= 8.0.1.21160 < 8.1.7.21585"		windows		Affected
Cisco Search vendor "Cisco"		Secure Endpoint Private Cloud Search vendor "Cisco" for product "Secure Endpoint Private Cloud"				< 3.8.0 Search vendor "Cisco" for product "Secure Endpoint Private Cloud" and version " < 3.8.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected