CVE-2017-5972

Linux Kernel 3.10.0 (CentOS 7) - Denial of Service

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many TCP SYN packets, as demonstrated by an attack against the kernel-3.10.0 package in CentOS Linux 7. NOTE: third parties have been unable to discern any relationship between the GitHub Engineering finding and the Trigemini.c attack code.

La pila TCP en el kernel de Linux versiones 3.x, no implementa apropiadamente un mecanismo de protección de cookies SYN para el caso de una conexión de red rápida, lo que permite a los atacantes remotos causar una denegación de servicio (consumo de CPU) mediante el envío de muchos paquetes TCP SYN, como es demostrado por un ataque contra el paquete kernel versión 3.10.0 en CentOS Linux versión 7. NOTA: terceros no han podido discernir ninguna relación entre la búsqueda de GitHub Engineering y el código de ataque Trigemini.c.

CentOS7 suffers from a kernel crashing denial of service issue triggered by an rsyslog daemon vulnerability.

*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

2017-02-12 CVE Reserved
2017-02-14 CVE Published
2023-05-21 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (9)

URL	Tag	Source
http://seclists.org/oss-sec/2017/q1/573	Mailing List
http://www.securityfocus.com/bid/96231	Third Party Advisory
https://access.redhat.com/security/cve/cve-2017-5972	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1422081	Issue Tracking
https://githubengineering.com/syn-flood-mitigation-with-synsanity	Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2017-5972	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/41350	2024-08-05
https://cxsecurity.com/issue/WLB-2017020112	2024-08-05
https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.0.0 <= 3.19.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0.0 <= 3.19.8"		-		Affected