CVE-2017-5972 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 23.9% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 23.89% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-400 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-02-14 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 3.10.0 (CentOS 7) - Denial of Service | 2017-02-12 |
References
- http://seclists.org/oss-sec/2017/q1/573
- http://www.securityfocus.com/bid/96231
- https://access.redhat.com/security/cve/cve-2017-5972
- https://bugzilla.redhat.com/show_bug.cgi?id=1422081
- https://cxsecurity.com/issue/WLB-2017020112
- https://githubengineering.com/syn-flood-mitigation-with-synsanity/
- https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html
- https://security-tracker.debian.org/tracker/CVE-2017-5972
- https://www.exploit-db.com/exploits/41350/
- http://seclists.org/oss-sec/2017/q1/573
- http://www.securityfocus.com/bid/96231
- https://access.redhat.com/security/cve/cve-2017-5972
- https://bugzilla.redhat.com/show_bug.cgi?id=1422081
- https://cxsecurity.com/issue/WLB-2017020112
- https://githubengineering.com/syn-flood-mitigation-with-synsanity/
- https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html
- https://security-tracker.debian.org/tracker/CVE-2017-5972
- https://www.exploit-db.com/exploits/41350/
→ the Explorer · watch your stack · NVD