| Vulnerability Name: | CVE-2017-5972 (CCN-122002) | ||||||||||||||||||||||||||||||||||||||||||||
| Assigned: | 2017-02-12 | ||||||||||||||||||||||||||||||||||||||||||||
| Published: | 2017-02-12 | ||||||||||||||||||||||||||||||||||||||||||||
| Updated: | 2020-07-31 | ||||||||||||||||||||||||||||||||||||||||||||
| 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. | ||||||||||||||||||||||||||||||||||||||||||||
| CVSS v3 Severity: | 7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) 6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:R)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:R)
| ||||||||||||||||||||||||||||||||||||||||||||
| CVSS v2 Severity: | 7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
| ||||||||||||||||||||||||||||||||||||||||||||
| Vulnerability Type: | CWE-400 | ||||||||||||||||||||||||||||||||||||||||||||
| Vulnerability Consequences: | Denial of Service | ||||||||||||||||||||||||||||||||||||||||||||
| References: | Source: MITRE Type: CNA CVE-2017-5972 Source: MISC Type: Mailing List, Third Party Advisory http://seclists.org/oss-sec/2017/q1/573 Source: CCN Type: Linux Kernel Web site The Linux Kernel Archives Source: BID Type: Third Party Advisory, VDB Entry 96231 Source: MISC Type: Third Party Advisory https://access.redhat.com/security/cve/cve-2017-5972 Source: MISC Type: Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=1422081 Source: CCN Type: CXSECURITY Web site CentOS7 kernel crashing by rsyslog daemon vulnerability DoS Source: MISC Type: Exploit, Third Party Advisory https://cxsecurity.com/issue/WLB-2017020112 Source: XF Type: UNKNOWN linux-kernel-cve20175972-dos(122002) Source: MISC Type: Third Party Advisory https://githubengineering.com/syn-flood-mitigation-with-synsanity/ Source: CCN Type: Packet Storm Security [02-14-2017] CentOS7 Kernel Denial Of Service Source: MISC Type: Exploit, Third Party Advisory, VDB Entry https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html Source: MISC Type: Third Party Advisory https://security-tracker.debian.org/tracker/CVE-2017-5972 Source: EXPLOIT-DB Type: EXPLOIT Offensive Security Exploit Database [02-12-2017] Source: EXPLOIT-DB Type: Third Party Advisory, VDB Entry 41350 | ||||||||||||||||||||||||||||||||||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||||||||||||||||||||||||||||||||||
| Oval Definitions | |||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||
| BACK | |||||||||||||||||||||||||||||||||||||||||||||