CVE-2021-1404

Description

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.

How to fix CVE-2021-1404

To remediate CVE-2021-1404, upgrade the affected package to a fixed version below.

• —upgrade to 0.103.2-r0 or later
• —upgrade to 0.103.2+dfsg-1 or later

Is CVE-2021-1404 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 0.103.2-r0
• from 0, < 0.103.2+dfsg-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2021-1404
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-1404