Multiple vulnerabilities in ClamAV



| 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
 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

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-2023-20197

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

CPE2.3 External links

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

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 - Expired pointer dereference

Exploit availability: No

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

CPE2.3 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


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.



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