Home/CVE/On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the H
CVE

CVE-2023-20032

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the H

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/"].

CRITICAL · CVSS 9.8 EPSS 0.07124
Schedule remediation
  • EPSS percentile: top 8% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

16
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 and < 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 and < 14.0.4-005
cisco web security appliance>= 14.5.0 and < 14.5.1-013
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRelevant ClamAV Message
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Mar 2023 · 08:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:12696-1
msrcCVE-2023-20032
usnUSN-5887-1
suse-csafSUSE-SU-2023:0470-1
suse-csafSUSE-SU-2023:0471-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-q8DThCyVendor Advisory
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