CVE-2021-1404 Clam AntiVirus (ClamAV) Email Parser Denial of Service Vulnerability

2021-04-0800:00:00

CWE-20

cisco

www.cve.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

59.8%

JSON

A vulnerability in the PDF parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper buffer size tracking that may result in a heap buffer over-read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.

CNA Affected

[
  {
    "product": "ClamAV",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "0.103.0"
      },
      {
        "status": "affected",
        "version": "0.103.1"
      }
    ]
  }
]