CVE-2017-5972

HIGH

Linux Kernel < 3.19.8 - Denial of Service

Title source: rule

Description

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.

Exploits (1)

exploitdb WORKING POC

by FarazPajohan · cdoslinux

https://www.exploit-db.com/exploits/41350

View Code ZIP pw:eip

References (9)

[Mailing List, Third Party Advisory] http://seclists.org/oss-sec/2017/q1/573

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/96231

[Third Party Advisory] https://access.redhat.com/security/cve/cve-2017-5972

[Issue Tracking, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1422081

[Exploit, Third Party Advisory] https://cxsecurity.com/issue/WLB-2017020112

[Third Party Advisory] https://githubengineering.com/syn-flood-mitigation-with-synsanity/

[Exploit, Third Party Advisory, VDB Entry] https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html

[Third Party Advisory] https://security-tracker.debian.org/tracker/CVE-2017-5972

[Third Party Advisory, VDB Entry] https://www.exploit-db.com/exploits/41350/

Scores

CVSS v3 7.5

EPSS 0.1891

EPSS Percentile 95.3%

Attack Vector NETWORK

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

Details

CWE

CWE-400

Status published

Products (1)

linux/linux_kernel 3.0.0 - 3.19.8

Published Feb 14, 2017

Tracked Since Feb 18, 2026