CVE-2019-5606

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 r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration. This causes an incorrect signal to be raised leading to a write after free of kernel memory allowing a malicious user to gain root privileges or escape a jail.

En FreeBSD versión 12.0-STABLE anterior a r349805, versión 12.0-RELEASE anterior a 12.0-RELEASE-p8, versión 11.3-STABLE anterior a r349806, versión 11.3-RELEASE anterior a 11.3-RELEASE-p1, y versión 11.2-RELEASE anterior a 11.2-RELEASE-p12, el código que maneja el cierre de un descriptor creado por posix_openpt no puede deshacer una configuración de la señal. Esto causa que una señal incorrecta sea generada conduciendo a una escritura después de liberar la memoria del kernel, lo que permite a un usuario malicioso alcanzar privilegios de root o escapar de una jaula..

*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
2024-07-19 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (3)

URL	Tag	Source
http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.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-19:13.pts.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