CVE-2019-5599

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In FreeBSD 12.0-STABLE before r349197 and 12.0-RELEASE before 12.0-RELEASE-p6, a bug in the non-default RACK TCP stack can allow an attacker to cause several linked lists to grow unbounded and cause an expensive list traversal on every packet being processed, leading to resource exhaustion and a denial of service.

En FreeBSD versión 12.0-STABLE anterior a r349197 y versión 12.0-RELEASE anterior a 12.0-RELEASE-p6, un bug en la pila de RACK TCP no predeterminada puede permitir a un atacante causar que varias listas vinculadas crezcan sin límites y causar un salto de lista costoso en cada paquete procesado, lo que conlleva al agotamiento de los recursos y una denegación de servicio.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-07 CVE Reserved
2019-06-18 CVE Published
2024-08-04 CVE Updated
2024-11-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (10)

URL	Tag	Source
http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html	Third Party Advisory
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html	Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/06/17/5	Mailing List
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md	Mitigation
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190625-0004	Third Party Advisory
https://support.f5.com/csp/article/K75521003	Third Party Advisory
https://www.kb.cert.org/vuls/id/905115	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://seclists.org/bugtraq/2019/Jun/27	2020-08-24

URL	Date	SRC
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc	2020-08-24

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"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		p1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		p2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		p3		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		p4		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0"		p5		Affected