CVE-2023-20032

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/"].

Clam AntiVirus (clamav) is an open source antivirus engine for detecting trojans, viruses, malware other malicious threats. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. he virus database is based on the virus database from OpenAntiVirus, but contains additional signatures and is KEPT UP TO DATE.

Security Fix(es):

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/"].(CVE-2023-20032)

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the DMG 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 access sensitive information on an affected device. This vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process.(CVE-2023-20052)

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/"].

• Update to 0.103.11
• CVE-2023-20032: fix missing buffer size check that may result in a heap buffer overflow write
• Don't apply clamav-check.patch and CVE-2022-20698.patch as they have already been applied in new 0.103.11 version
• Don't apply clamav-clamonacc-service.patch since el6 doesn't have systemd and service file is useless

• Update up to 1.4.3 LTS
  • CVE-2025-20260
  • CVE-2025-20234
  • CVE-2025-20128
  • CVE-2024-20505, CVE-2024-20506
  • CVE-2023-20197
  • CVE-2023-20212
  • CVE-2023-20032
  • CVE-2023-20052

A possible remote code execution vulnerability in the HFS+ file parser. (CVE-2023-20032)

A possible remote information leak vulnerability in the DMG file parser. (CVE-2023-20052)

These are all security issues fixed in the clamav-0.103.8-1.1 package on the GA media of openSUSE Tumbleweed.

This update for clamav fixes the following issues:

• CVE-2023-20032: Fixed a possible remote code execution vulnerability in the HFS+ file parser (bsc#1208363).
• CVE-2023-20052: Fixed a possible remote information leak vulnerability in the DMG file parser (bsc#1208365).

This update for clamav fixes the following issues:

• CVE-2023-20032: Fixed a possible remote code execution vulnerability in the HFS+ file parser (bsc#1208363).
• CVE-2023-20052: Fixed a possible remote information leak vulnerability in the DMG file parser (bsc#1208365).

This update for clamav fixes the following issues:

• CVE-2023-20032: Fixed a possible remote code execution vulnerability in the HFS+ file parser (bsc#1208363).
• CVE-2023-20052: Fixed a possible remote information leak vulnerability in the DMG file parser (bsc#1208365).

Simon Scannell discovered that ClamAV incorrectly handled parsing HFS+ files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2023-20032)

Simon Scannell discovered that ClamAV incorrectly handled parsing DMG files. A remote attacker could possibly use this issue to expose sensitive information. (CVE-2023-20052)