cve/2019/CVE-2019-5607.md

### [CVE-2019-5607](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5607)
![](https://img.shields.io/static/v1?label=Product&message=FreeBSD&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20update%20of%20reference%20count&color=brighgreen)

### Description

In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event. This could allow a malicious local user to gain root privileges or escape from a jail.

### POC

#### Reference
- http://packetstormsecurity.com/files/153755/FreeBSD-Security-Advisory-FreeBSD-SA-19-17.fd.html

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