What is CVE-2017-5972?

CVE-2017-5972 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400). CVE-2017-5972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-5972?

CVE-2017-5972 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2017-5972?

No patch is currently available for CVE-2017-5972. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-5972 actively exploited?

CVE-2017-5972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2017-5972

High

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.

Package Linux Kernel

Published 2017-02-14

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-400

CVE-2017-5972 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2017-5972 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Seclists
http://seclists.org/oss-sec/2017/q1/573

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/96231

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/security/cve/cve-2017-5972

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1422081

Issue Tracking Third Party Advisory
Cxsecurity
https://cxsecurity.com/issue/WLB-2017020112

Exploit Third Party Advisory
Githubengineering
https://githubengineering.com/syn-flood-mitigation-with-synsanity/

Third Party Advisory
Packet Storm
https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html

Exploit Third Party Advisory VDB Entry
Debian Security
https://security-tracker.debian.org/tracker/CVE-2017-5972

Third Party Advisory
Exploit-DB
https://www.exploit-db.com/exploits/41350/

Third Party Advisory VDB Entry

Details

CVE ID CVE-2017-5972

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2017-02-14

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-5972?

CVE-2017-5972 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . CVE-2017-5972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-5972?

CVE-2017-5972 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2017-5972?

No patch is currently available for CVE-2017-5972. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-5972 actively exploited?

No — CVE-2017-5972 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. View CWE-400 on MITRE CWE →