CVE-2023-20052

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.

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.

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 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.

• 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

• Update to 1.0.9 LTS version
• CVE-2025-20260: Fixed a possible buffer overflow write bug in the PDF file parser
• CVE-2025-20128: Fixed a possible buffer overflow read bug in the OLE2 file parser
• CVE-2024-20506: Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' or 'freshclam' services from using a symlink to corrupt system files
• CVE-2024-20290: Fixed a possible heap overflow read bug in the OLE2 file parser
• CVE-2024-20328: Fixed a possible command injection in the 'VirusEvent' feature of the clamd service
• CVE-2023-20197: Fixed a possible denial of service in the HFS+ parser
• CVE-2023-20212: Fixed a possible DoS in the AutoIT file parser
• CVE-2023-20052: Fixed a possible remote information leak in the DMG file parser

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)