CVE-2021-1404
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductClamav
PublishedApr 8, 2021
First seenApr 8, 2021
Weakness typeCWE-20Improper input validation
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| clamav clamav | 0.103.0, 0.103.1 | — |
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