CVE-2019-15961

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

15/01/2020

Last modified:

17/06/2026

Description

A vulnerability in the email parsing module Clam AntiVirus (ClamAV) Software versions 0.102.0, 0.101.4 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to inefficient MIME parsing routines that result in extremely long scan times of specially formatted email files. An attacker could exploit this vulnerability by sending a crafted email file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to scan the crafted email file indefinitely, resulting in a denial of service condition.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0

7.10

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:clamav:clamav::::::::		0.101.4 (including)
cpe:2.3:a:clamav:clamav:0.102.0:::::::*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.1-042:::::::*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.2-023:::::::*
cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:debian:debian_linux:8.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:clamav:clamav::::::::		0.101.4 (including)
cpe:2.3:a:clamav:clamav:0.102.0:::::::*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.1-042:::::::*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.2-023:::::::*
cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:debian:debian_linux:8.0:::::::*

CVE-2019-15961

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools