cisco-sa-clamav-ole2-H549rphA: ClamAV OLE2 File Format Decryption Denial of Service Vulnerability
First published: Wed Jan 22 2025(Updated: )
A vulnerability in the Object Linking and Embedding 2 (OLE2) decryption routine of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.This vulnerability is due to an integer underflow in a bounds check that allows for a heap buffer overflow read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software.For a description of this vulnerability, see the ClamAV blog.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ClamAV |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-clamav-ole2-H549rphA?
The severity of cisco-sa-clamav-ole2-H549rphA is considered to be high due to its ability to cause a denial of service.
How do I fix cisco-sa-clamav-ole2-H549rphA?
To fix cisco-sa-clamav-ole2-H549rphA, upgrade to the latest version of ClamAV that addresses this vulnerability.
Who is affected by cisco-sa-clamav-ole2-H549rphA?
Any devices running an affected version of ClamAV are at risk of the cisco-sa-clamav-ole2-H549rphA vulnerability.
What type of attack can cisco-sa-clamav-ole2-H549rphA facilitate?
cisco-sa-clamav-ole2-H549rphA can facilitate remote denial of service attacks against vulnerable systems.
Is authentication required to exploit cisco-sa-clamav-ole2-H549rphA?
No, cisco-sa-clamav-ole2-H549rphA can be exploited by unauthenticated remote attackers.
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