CVEs-PoC/2017/CVE-2017-12374.md

### [CVE-2017-12374](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12374)
![](https://img.shields.io/static/v1?label=Product&message=ClamAV%20AntiVirus%20software%20versions%200.99.2%20and%20prior&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=ClamAV%20AntiVirus%20software%20versions%200.99.2%20and%20prior%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=use-after-free&color=brightgreen)

### Description

The 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 a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.

### POC

#### Reference
- https://bugzilla.clamav.net/show_bug.cgi?id=11939
- https://usn.ubuntu.com/3550-1/
- https://usn.ubuntu.com/3550-2/

#### Github
No PoCs found on GitHub currently.