CVSS: 8.6EPSS: 0%CPEs: 1EXPL: 0CVE-2022-20803 – ClamAV Double-free Vulnerability in the OLE2 File Parser
https://notcve.org/view.php?id=CVE-2022-20803
A vulnerability in the OLE2 file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.The vulnerability is due to incorrect use of the realloc function that may result in a double-free. An attacker could exploit this vulnerability by submitting a crafted OLE2 file to be scanned by ClamAV on the affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition. • https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html https://security.gentoo.org/glsa/202310-01 • CWE-415: Double Free •
CVSS: 5.3EPSS: 0%CPEs: 14EXPL: 2CVE-2023-20052
https://notcve.org/view.php?id=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. • https://github.com/nokn0wthing/CVE-2023-20052 https://github.com/cY83rR0H1t/CVE-2023-20052 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhN • CWE-611: Improper Restriction of XML External Entity Reference CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •
CVSS: 9.8EPSS: 0%CPEs: 18EXPL: 0CVE-2023-20032
https://notcve.org/view.php?id=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/"]. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-q8DThCy • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2022-20792
https://notcve.org/view.php?id=CVE-2022-20792
A vulnerability in the regex module used by the signature database load module of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution. The vulnerability is due to improper bounds checking that may result in a multi-byte heap buffer overwflow write. An attacker could exploit this vulnerability by placing a crafted CDB ClamAV signature database file in the ClamAV database directory. An exploit could allow the attacker to run code as the clamav user. Una vulnerabilidad en el módulo regex usado por el módulo de carga de la base de datos de firmas de Clam AntiVirus (ClamAV) versiones 0.104.0 hasta 0.104.2 y LTS versiones 0.103.5 y anteriores, podría permitir a un atacante local autenticado bloquear ClamAV en el momento de la carga de la base de datos, y posiblemente obtener una ejecución de código. • https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html https://security.gentoo.org/glsa/202310-01 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 13EXPL: 0CVE-2022-20796 – ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022
https://notcve.org/view.php?id=CVE-2022-20796
On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. El 4 de mayo de 2022, fue divulgada la siguiente vulnerabilidad en ClamAV scanning library versiones 0.103.5 y anteriores y 0.104.2 y anteriores: Una vulnerabilidad en versiones 0.103.4, 0.103.5, 0.104.1 y 0.104.2 de Clam AntiVirus (ClamAV) podría permitir a un atacante local autenticado causar una condición de denegación de servicio en un dispositivo afectado. Para una descripción de esta vulnerabilidad, vea el blog de ClamAV • https://lists.debian.org/debian-lts-announce/2022/06/msg00004.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56 https://security.gentoo.org/glsa/202310-01 https://tools.cisco.com/security/center/content/CiscoSecuri • CWE-476: NULL Pointer Dereference CWE-822: Untrusted Pointer Dereference •