Related Vulnerabilities: CVE-2017-12380  

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms in mbox.c during certain mail parsing functions of the ClamAV software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. An exploit could trigger a NULL pointer dereference condition when ClamAV scans the malicious email, which may result in a DoS condition.

Severity Medium

Remote Yes

Type Denial of service

Description

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms in mbox.c during certain mail parsing functions of the ClamAV software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. An exploit could trigger a NULL pointer dereference condition when ClamAV scans the malicious email, which may result in a DoS condition.

AVG-601 clamav 0.99.2-1 0.99.3-1 Critical Fixed FS#57233

09 Feb 2018 ASA-201802-1 AVG-601 clamav Critical multiple issues

http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
https://bugzilla.clamav.net/show_bug.cgi?id=11945
https://github.com/Cisco-Talos/clamav-devel/commit/39c89d14a61aef2958b8ea64ade1be7a5faca897