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 v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

23.89% chance of exploitation in the next 30 days, 98th percentile

Published

2017-02-14

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/41350

References

• CVE Record
• NVD entry

Related

• CVE-2017-5971
• CVE-2017-5974
• CVE-2017-5961
• CVE-2017-5975
• CVE-2017-5954
• CVE-2017-5976