Secure Endpoint and ClamAV
CVE-2023-20197: A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) of ClamAV could all…
A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Secure Endpoint 6.0 | See the advisory |
| Cisco Secure Endpoint 6.0 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 7.0 | See the advisory |
| Cisco Secure Endpoint 7.1 | See the advisory |
| Cisco Secure Endpoint 7.1 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 1.11 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.14 | See the advisory |
| Cisco Secure Endpoint 1.6 | See the advisory |
| Cisco Secure Endpoint 1.9 | See the advisory |
| Cisco Secure Endpoint 1.9 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.7 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint Private Cloud Console N/A | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) 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 incorrect check for completion when a file is decompressed, which may result in a loop condition that could cause the affected software to stop responding. An attacker could exploit this vulnerability by submitting a crafted HFS+ filesystem image to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to stop responding, resulting in a DoS condition on the affected software and consuming available system resources. For a description of this vulnerability, see the ClamAV blog .
Exploitation
The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability that is described in this advisory.
The Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.