Resource Exhaustion Affecting kernel-rt-debug package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELRTDEBUG-1370959
- published 26 Jul 2021
- disclosed 12 Feb 2017
Introduced: 12 Feb 2017
CVE-2017-5972 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-rt-debug.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/96231
- https://access.redhat.com/security/cve/CVE-2017-5972
- https://www.exploit-db.com/exploits/41350/
- https://access.redhat.com/security/cve/cve-2017-5972
- https://bugzilla.redhat.com/show_bug.cgi?id=1422081
- https://cxsecurity.com/issue/WLB-2017020112
- http://seclists.org/oss-sec/2017/q1/573
- 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