CVE-2017-5972in critical feed1 exploit
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 connecti…
Published 9 y ago · modified 4 mo ago · JSON
Summary
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.
Exploit prediction (EPSS)
23.89% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.
Exploits and detections
- EDB-41350 Linux Kernel 3.10.0 (CentOS 7) - Denial of Service · dos · 2017-02-12
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
- CWE-400 Uncontrolled Resource Consumption
- Technology feeds
- Linux kernel (RSS, critical only)
References
- seclists.org /oss-sec/2017/q1/573 · x_refsource_MISC, x_transferred
- exploit-db.com /exploits/41350/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
- bugzilla.redhat.com /show_bug.cgi?id=1422081 · x_refsource_MISC, x_transferred
- cxsecurity.com /issue/WLB-2017020112 · x_refsource_MISC, x_transferred
- security-tracker.debian.org /tracker/CVE-2017-5972 · x_refsource_MISC, x_transferred
- githubengineering.com /syn-flood-mitigation-with-synsanity/ · x_refsource_MISC, x_transferred
- securityfocus.com /bid/96231 · vdb-entry, x_refsource_BID, x_transferred
- packetstormsecurity.com /files/141083/CentOS7-Kernel-Denial-Of-Service.html · x_refsource_MISC, x_transferred
- access.redhat.com /security/cve/cve-2017-5972 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2017-5972
- NVD: CVE-2017-5972
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