CVE-2023-20032

CRITICAL

Published Mar 1, 20233y ago · Modified Jun 17, 20262w ago

9.8 CVSS 3.1

Critical

Published Mar 1, 2023 3y ago

Last Modified Jun 17, 2026 2w ago

Description

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-120

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 18

Vendor	Product	Version	Range
cisco	secure_endpoint	*	<1.20.2
cisco	secure_endpoint	*	<1.21.1
cisco	secure_endpoint	*	<7.5.9
cisco	secure_endpoint	*	≥8.0.1.21160 – <8.1.5
cisco	secure_endpoint_private_cloud	*	<3.6.0
cisco	web_security_appliance	*	<12.5.6
cisco	web_security_appliance	*	≥14.0.0 – <14.0.4-005
cisco	web_security_appliance	*	≥14.5.0 – <14.5.1-013
cisco	web_security_appliance	*	≥15.0.0 – <15.0.0-254
clamav	clamav	*	≤0.103.7
clamav	clamav	*	≥0.104.0 – ≤0.105.1
clamav	clamav	1.0.0	any
clamav	clamav	1.0.0	any
clamav	clamav	1.0.0	any
stormshield	stormshield_network_security	*	≥3.0.0 – <3.7.35
stormshield	stormshield_network_security	*	≥3.8.0 – <3.11.23
stormshield	stormshield_network_security	*	≥4.3.0 – <4.3.17
stormshield	stormshield_network_security	*	≥4.4.0 – <4.6.4

References 1

sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-q8DThCy

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.