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Fencer Vulns
critical 9.8

CVE-2023-20032 in the critical feed json

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parse…

published 2023-02-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-24211

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
30.1%
EPSS 30.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

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/"].

Patch / fix

  • cisco secure_endpoint 1.20.2, 1.21.1, 7.5.9, 8.1.5
  • cisco secure_endpoint_private_cloud 3.6.0
  • cisco web_security_appliance 12.5.6, 14.0.4-005, 14.5.1-013, 15.0.0-254
  • stormshield stormshield_network_security 3.7.35, 3.11.23, 4.3.17, 4.6.4
  • clamav Debian 14, Debian 13, Debian 12 1.0.1+dfsg-1

debian advisories DEBIAN-CVE-2023-20032

  • clamav Ubuntu 18.04 LTS 0.103.8+dfsg-0ubuntu0.18.04.1
  • clamav Ubuntu 20.04 LTS 0.103.8+dfsg-0ubuntu0.20.04.1
  • clamav Ubuntu 22.04 LTS 0.103.8+dfsg-0ubuntu0.22.04.1
  • clamav Ubuntu Pro 14.04 LTS 0.103.8+dfsg-0ubuntu0.14.04.1+esm1
  • clamav Ubuntu Pro 16.04 LTS 0.103.8+dfsg-0ubuntu0.16.04.1+esm1

ubuntu advisories UBUNTU-CVE-2023-20032

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • clamav SLES for SAP 12 SP5, SLES 12 SP5 0.103.8-3.24.1
  • clamav SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES for SAP 15 SP1 +14 more 0.103.8-150000.3.44.1
  • clamav SLES for SAP 12 SP4, SLES 12 SP4-LTSS, SLES 12 SP2-BCL +2 more 0.103.8-33.53.1

suse advisories SUSE-SU-2023:0471-1SUSE-SU-2023:0470-1SUSE-SU-2023:0453-1

  • clamav openSUSE Tumbleweed 0.103.8-1.1

opensuse advisories openSUSE-SU-2024:12696-1

  • clamav Alpine 3.17 0.105.2-r0
  • clamav Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 1.0.1-r0

alpine advisories ALPINE-CVE-2023-20032

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • clamav CBL-Mariner 2.0 0.105.2-1

azure linux advisories AZL-13724

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-20032 updated cvss 9.8

clamav: HFS+ Partition Scanning Buffer Overflow Vulnerability

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-105-08 updated cvss 7.8

ABB M2M Gateway

  • ABB M2M Gateway >=4.1.2, <=5.0.3, >=5.0.1, <=5.0.3
    affected: mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

30.06% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Cisco Cisco Secure Web Appliance
  • Cisco Cisco Secure Endpoint
  • Cisco Cisco Secure Endpoint Private Cloud Administration Portal

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.