#VU79634 Expired pointer dereference in ClamAV - CVE-2023-20212

Vulnerability identifier: #VU79634

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-20212

CWE-ID: CWE-825

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ClamAV
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: ClamAV

Description

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

The vulnerability exists due to an error in the AutoIt file parser. A remote attacker can pass specially crafted file to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ClamAV: 1.0.0 - 1.0.1

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External links
https://blog.clamav.net/2023/07/2023-08-16-releases.html
https://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.0.2

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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.