CVE-2019-5607

FreeBSD Security Advisory - FreeBSD-SA-19:17.fd

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En FreeBSD versión 12.0-STABLE anterior a r350222, versión 12.0-RELEASE anterior a 12.0-RELEASE-p8, versión 11.3-STABLE anterior a r350223, versión 11.3-RELEASE anterior a 11.3-RELEASE-p1, y versión 11.2-RELEASE anterior a 11.2-RELEASE-p12, los derechos transmitidos por un socket de dominio no liberan apropiadamente una referencia en un error de transmisión permitiendo a un usuario malicioso causar que el contador de referencia se ajuste, forzando una liberación de evento. Esto podría permitir a un usuario local malicioso alcanzar privilegios de root o escapar de una jaula.

If a process attempts to transmit rights over a UNIX-domain socket and an error causes the attempt to fail, references acquired on the rights are not released and are leaked. This bug can be used to cause the reference counter to wrap around and free the corresponding file structure. A local user can exploit the bug to gain root privileges or escape from a jail.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-07 CVE Reserved
2019-07-25 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-404: Improper Resource Shutdown or Release
CWE-682: Incorrect Calculation

CAPEC

References (3)

URL	Tag	Source
http://packetstormsecurity.com/files/153755/FreeBSD-Security-Advisory-FreeBSD-SA-19-17.fd.html	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190814-0003	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:17.fd.asc	2023-02-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.0 Search vendor "Freebsd" for product "Freebsd" and version "11.0"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		-		Affected