CVE-2017-5972

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 v3.0 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://githubengineering.com/syn-flood-mitigation-with-synsanity/	Third Party Advisory
https://cxsecurity.com/issue/WLB-2017020112	Exploit Third Party Advisory
http://www.securityfocus.com/bid/96231	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/41350/	Third Party Advisory VDB Entry
https://security-tracker.debian.org/tracker/CVE-2017-5972	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1422081	Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/cve-2017-5972	Third Party Advisory
https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html	Exploit Third Party Advisory VDB Entry
http://seclists.org/oss-sec/2017/q1/573	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2017-02-13 22:59

Updated : 2020-07-31 13:35

NVD link : CVE-2017-5972

Mitre link : CVE-2017-5972

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

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Products Affected

linux

linux_kernel

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