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Vulnerability · Published May 13, 2020 · Assigned by cisco

CVE-2020-3327ClamAV ARJ Archive Parsing Denial of Service Vulnerability

High 7.5

In plain English

A high-severity improper input validation in ClamAV from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.1% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)5.1%top 7.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability in the ARJ archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a heap buffer overflow read. An attacker could exploit this vulnerability by sending a crafted ARJ file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20clamav0.102.3-r0ALPINE-CVE-2020-3327
Alpine:v3.21clamav0.102.3-r0ALPINE-CVE-2020-3327
Alpine:v3.22clamav0.102.3-r0ALPINE-CVE-2020-3327
Alpine:v3.23clamav0.102.3-r0ALPINE-CVE-2020-3327
Alpine:v3.24clamav0.102.3-r0ALPINE-CVE-2020-3327
Debian:12clamav0.102.4+dfsg-1DEBIAN-CVE-2020-3327
Debian:13clamav0.102.4+dfsg-1DEBIAN-CVE-2020-3327
Debian:14clamav0.102.4+dfsg-1DEBIAN-CVE-2020-3327

Affected products (as reported)

VendorProductVersions
Cisco ClamAV unspecified – before 0.102.3

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References