CVE-2017-5972

 

Published at: - 14-02-2017 07:59

Last modified: - 21-09-2022 08:44

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://githubengineering.com/syn-flood-mitigation-with-synsanity/
• https://cxsecurity.com/issue/WLB-2017020112
• 96231-Third Party Advisory, VDB Entry
• 41350-Third Party Advisory, VDB Entry
• https://security-tracker.debian.org/tracker/CVE-2017-5972
• https://bugzilla.redhat.com/show_bug.cgi?id=1422081
• https://access.redhat.com/security/cve/cve-2017-5972
• https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html
• http://seclists.org/oss-sec/2017/q1/573

 

Keywords

NVD

 

CVE-2017-5972

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures