Multiple vulnerabilities in ClamAV

Published: 2023-08-16 | Updated: 2023-08-17

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-20197 CVE-2023-20212
CWE-ID	CWE-835 CWE-825
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	ClamAV Client/Desktop applications / Antivirus software/Personal firewalls
Vendor	ClamAV

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU79633

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20197

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in the HFS+ file parser. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ClamAV: 0.01 - 1.1.0

External links

http://blog.clamav.net/2023/07/2023-08-16-releases.html
http://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.1.1
http://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.0.2
http://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-0.103.9

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Expired pointer dereference

EUVDB-ID: #VU79634