CVE-2021-1252
High
Description
A vulnerability in the Excel XLM macro 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 error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, 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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