ClamAV DoS vulnerability

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2024-034 CVE-2024-20505 09/16/2024 medium v1

Vulnerability details

A remote attacker could exploit this vulnerability via a specially crafted PDF file in order to cause a denial of service condition on the ClamAV service.

Impacted products

ProductsSeverityDetail
Stormshield Network Security medium SNS is impacted

Revisions

Version Date Description
v1 11/13/2024 Initial release
v2 11/14/2024 Update CVSS Score


Stormshield Network Security

CVSS v3.1 Overall Score: 5.1      

Analysis

Impacted version

ClamAV fixed a possible out-of-bounds read bug in the PDF file parser that could cause a denial-of-service (DoS) condition.
  • SNS 4.3.31
  • SNS 4.6.12
  • SNS 4.7.9
  • SNS 4.8.3

Workaround solution

Solution

There is no workaround solution.

The following SNS versions will fix this vulnerability:

  • 4.3.32
  • 4.8.4


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 Reasonable
CVSS Temporal score: 4.4 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R)
Confidentiality Requirement Integrity Requirement Availability Requirement
Low Low High
CVSS Environmental score: 5.1 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R/CR:L/IR:L/AR:H/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)