High severity7.5NVD Advisory· Published Feb 14, 2017· Updated Jun 17, 2026
CVE-2017-5972
CVE-2017-5972
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.
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Affected products
3Patches
Vulnerability mechanics
References
9- cxsecurity.com/issue/WLB-2017020112nvdExploitThird Party Advisory
- packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.htmlnvdExploitThird Party AdvisoryVDB Entry
- seclists.org/oss-sec/2017/q1/573nvdMailing ListThird Party Advisory
- www.securityfocus.com/bid/96231nvdThird Party AdvisoryVDB Entry
- access.redhat.com/security/cve/cve-2017-5972nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- githubengineering.com/syn-flood-mitigation-with-synsanity/nvdThird Party Advisory
- security-tracker.debian.org/tracker/CVE-2017-5972nvdThird Party Advisory
- www.exploit-db.com/exploits/41350/nvdThird Party AdvisoryVDB Entry
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