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.
References (1)
Core 1
Core References
Release Notes, Vendor Advisory vendor-advisory
x_refsource_cisco
https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html
Scores
CVSS v3
7.5
EPSS
0.0045
EPSS Percentile
63.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-125
CWE-20
Status
published
Products (2)
clamav/clamav
0.103.0
clamav/clamav
0.103.1
Published
Apr 08, 2021
Tracked Since
Feb 18, 2026