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CVE-2021-1405

Published: 8 April 2021

A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
clamav
Launchpad, Ubuntu, Debian
trusty
Released (0.103.2+dfsg-0ubuntu0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

bionic
Released (0.103.2+dfsg-0ubuntu0.18.04.1)
focal
Released (0.103.2+dfsg-0ubuntu0.20.04.1)
groovy
Released (0.103.2+dfsg-0ubuntu0.20.10.1)
hirsute Not vulnerable
(0.103.2+dfsg-1)
xenial
Released (0.103.2+dfsg-0ubuntu0.16.04.1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H