CVE-2021-1252
Last modified
CVE-2021-1252 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.62% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Clamav | Clamav | 0.103.0 |
| Clamav | Clamav | 0.103.1 |
References
- https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.htmlRelease Notes, Vendor Advisory
- https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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