CVEs-PoC/2019/CVE-2019-5596.md

CVE-2019-5596

Description

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.

POC

Reference

• http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/alphaSeclab/sec-daily-2019
• https://github.com/raymontag/CVE-2019-5596