CVE-2021-1252: Clam AntiVirus (ClamAV) Excel XLM Parser Denial of Service Vulnerability
First published: Thu Apr 08 2021(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Clamav Clamav | =0.103.0 | |
| Clamav Clamav | =0.103.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is CVE-2021-1252?
CVE-2021-1252 is a vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) software versions 0.103.0 and 0.103.1.
What is the impact of CVE-2021-1252?
CVE-2021-1252 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.
What is the severity of CVE-2021-1252?
CVE-2021-1252 has a severity rating of 7.5 (High).
How can I mitigate the risk of CVE-2021-1252?
To mitigate the risk of CVE-2021-1252, it is recommended to update to ClamAV software version 0.103.2 or later.
Where can I find more information about CVE-2021-1252?
You can find more information about CVE-2021-1252 in the ClamAV blog post at https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/weakness
- agent/severity
- agent/references
- agent/title
- agent/last-modified-date
- agent/tags
- agent/first-publish-date
- agent/event
- agent/description
- vendor/clamav
- canonical/clamav clamav
- version/clamav clamav/0.103.0
- version/clamav clamav/0.103.1