CVE-2019-5596 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Reference

http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html https://security.FreeBSD.org/advisories/FreeBSD-SA-19:02.fd.asc

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8