CVE-2023-20032: Buffer Overflow
First published: Thu Feb 16 2023(Updated: )
On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Secure Endpoint | <1.20.2 | |
| Cisco Secure Endpoint | <1.21.1 | |
| Cisco Secure Endpoint | <7.5.9 | |
| Cisco Secure Endpoint | >=8.0.1.21160<8.1.5 | |
| Cisco Secure Endpoint Private Cloud | <3.6.0 | |
| Cisco Web Security Appliance | <12.5.6 | |
| Cisco Web Security Appliance | >=14.0.0<14.0.4-005 | |
| Cisco Web Security Appliance | >=14.5.0<14.5.1-013 | |
| Cisco Web Security Appliance | >=15.0.0<15.0.0-254 | |
| Clamav Clamav | <=0.103.7 | |
| Clamav Clamav | >=0.104.0<=0.105.1 | |
| Clamav Clamav | =1.0.0 | |
| Clamav Clamav | =1.0.0-rc | |
| Clamav Clamav | =1.0.0-rc2 | |
| Stormshield Stormshield Network Security | >=3.0.0<3.7.35 | |
| Stormshield Stormshield Network Security | >=3.8.0<3.11.23 | |
| Stormshield Stormshield Network Security | >=4.3.0<4.3.17 | |
| Stormshield Stormshield Network Security | >=4.4.0<4.6.4 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this ClamAV vulnerability?
The vulnerability ID is CVE-2023-20032.
What is the severity of CVE-2023-20032?
The severity of CVE-2023-20032 is critical with a CVSS score of 9.8.
Which software versions are affected by CVE-2023-20032?
ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier are affected by CVE-2023-20032.
How can an attacker exploit CVE-2023-20032?
An unauthenticated remote attacker can exploit CVE-2023-20032 to execute arbitrary code.
Where can I find more information about CVE-2023-20032?
You can find more information about CVE-2023-20032 in the Cisco Security Advisory at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-q8DThCy.
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- version/cisco web security appliance/14.5.0
- version/cisco web security appliance/15.0.0
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