ClamAV DoS vulnerability

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2023-013 CVE-2023-20032 , CVE-2023-20052 02/16/2023 medium v1

Vulnerability details

ClamAV crash can be caused by crafted HFS+ or .dmg files.

Impacted products

Stormshield Network Security medium SNS is impacted


Version Date Description
v1 04/11/2023 Initial release
v2 05/25/2023 Update and disclose

Stormshield Network Security

CVSS v3.1 Overall Score: 4.6      


Impacted version

ClamAV is vulnerable to DoS Attack when parsing specially crafted HFS+ or .dmg files.

  • SNS 3.0.0 to 3.7.34
  • SNS 3.8.0 to 3.11.22
  • SNS 4.3.0 to 4.3.16
  • SNS 4.4.0 to 4.6.3

Workaround solution


There is no workaround solution.

The following versions fix this vulnerability

  • 3.7.35
  • 3.11.23
  • 4.3.17
  • 4.6.4
  • 4.7.0

Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Network Low None None Unchanged None None Low
CVSS Base score: 5.3 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploit Code Maturity Remediation Level Report Confidence
Unproven that exploit exists Official fix Confirmed
CVSS Temporal score: 4.6 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
Low Low Medium
CVSS Environmental score: 4.6 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C/CR:L/IR:L/AR:M/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)