CVE-2017-5972
highpriority · attend · 48EPSS 0.239 · 98 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-41350Linux Kernel 3.10.0 (CentOS 7) - Denial of ServicePoC · exploit_db
affected products (4)
Products and version ranges known to be affected.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (30)
External citations — patches, advisories, analysis.
- http://seclists.org/oss-sec/2017/q1/573cnnvd
- https://access.redhat.com/security/cve/cve-2017-5972cnnvd
- https://bto.bluecoat.com/security-advisory/sa148cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1422081cnnvd
- https://cxsecurity.com/issue/WLB-2017020112cnnvd
- https://githubengineering.com/syn-flood-mitigation-with-synsanity/cnnvd
- https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.htmlcnnvd
- https://security-tracker.debian.org/tracker/CVE-2017-5972cnnvd
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