CVE-2017-5972
The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-5972- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-5972- Updated
- 2026-11-02
EUVDEUVD-2017-15041 No score
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.
- Record
EUVD-2017-15041- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f37r-2v2w-7r8w
The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection...
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.
- Record
GHSA-f37r-2v2w-7r8w- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2017-5972- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2017-5972- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2017-5972- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 4.4.2-1 | 4.4.2-1 |
linuxDebian:13 |
before 4.4.2-1 | 4.4.2-1 |
linuxDebian:14 |
before 4.4.2-1 | 4.4.2-1 |
linuxUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 3.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.8 Show 45 moreShow less3.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.153.13.0-1.163.13.0-2.173.13.0-3.183.13.0-4.193.13.0-5.203.13.0-6.233.13.0-7.253.13.0-7.263.13.0-8.273.13.0-8.283.13.0-10.303.13.0-11.313.13.0-12.323.13.0-13.333.13.0-14.343.13.0-15.353.13.0-16.363.13.0-17.373.13.0-18.383.13.0-19.393.13.0-19.403.13.0-20.423.13.0-21.433.13.0-22.443.13.0-23.453.13.0-24.463.13.0-24.473.13.0-27.503.13.0-29.533.13.0-30.543.13.0-30.553.13.0-32.573.13.0-33.583.13.0-34.603.13.0-35.623.13.0-36.633.13.0-37.643.13.0-39.663.13.0-40.693.13.0-41.70 |
None known |
linux-azure-fdeUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1063.66+cvm2.25.4.0-1063.66+cvm3.25.4.0-1064.67+cvm1.15.4.0-1065.68+cvm2.15.4.0-1067.70+cvm1.1 Show 21 moreShow less5.4.0-1068.71+cvm1.15.4.0-1069.72+cvm1.15.4.0-1070.73+cvm1.15.4.0-1072.75+cvm1.15.4.0-1073.76+cvm1.15.4.0-1074.77+cvm1.15.4.0-1076.79+cvm1.15.4.0-1078.81+cvm1.15.4.0-1080.83+cvm1.15.4.0-1083.87+cvm1.15.4.0-1085.90+cvm1.15.4.0-1085.90+cvm2.15.4.0-1086.91+cvm1.15.4.0-1089.94+cvm1.25.4.0-1090.95+cvm1.15.4.0-1091.96+cvm1.15.4.0-1092.97+cvm1.15.4.0-1095.101+cvm1.15.4.0-1098.104+cvm1.15.4.0-1100.106+cvm1.15.4.0-1103.109+cvm1.1 |
None known |
linux-gkeUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1033.355.4.0-1035.375.4.0-1036.385.4.0-1037.395.4.0-1039.41 Show 45 moreShow less5.4.0-1041.435.4.0-1042.445.4.0-1043.455.4.0-1044.465.4.0-1046.485.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1055.585.4.0-1056.595.4.0-1057.605.4.0-1059.625.4.0-1061.645.4.0-1062.655.4.0-1063.665.4.0-1065.685.4.0-1066.695.4.0-1067.705.4.0-1068.715.4.0-1071.765.4.0-1072.775.4.0-1074.795.4.0-1076.825.4.0-1078.845.4.0-1080.865.4.0-1081.875.4.0-1083.895.4.0-1084.905.4.0-1086.935.4.0-1087.945.4.0-1090.975.4.0-1091.985.4.0-1094.1015.4.0-1095.1025.4.0-1096.1035.4.0-1097.1045.4.0-1098.1055.4.0-1099.1065.4.0-1100.1075.4.0-1101.1085.4.0-1102.1095.4.0-1103.1105.4.0-1104.111 |
None known |
linux-gkeopUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1008.95.4.0-1009.105.4.0-1010.115.4.0-1011.125.4.0-1012.13 Show 45 moreShow less5.4.0-1013.145.4.0-1014.155.4.0-1015.165.4.0-1016.175.4.0-1018.195.4.0-1021.225.4.0-1022.235.4.0-1023.245.4.0-1024.255.4.0-1025.265.4.0-1026.275.4.0-1027.285.4.0-1029.305.4.0-1031.325.4.0-1032.335.4.0-1033.345.4.0-1034.355.4.0-1036.375.4.0-1037.385.4.0-1038.395.4.0-1039.405.4.0-1040.415.4.0-1043.445.4.0-1046.485.4.0-1048.515.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1056.605.4.0-1057.615.4.0-1060.645.4.0-1061.655.4.0-1062.665.4.0-1064.685.4.0-1065.695.4.0-1066.705.4.0-1067.715.4.0-1068.725.4.0-1069.735.4.0-1070.745.4.0-1071.755.4.0-1072.765.4.0-1073.77 |
None known |
linux-gkeop-5.15Ubuntu:20.04:LTS |
All versions, plus listed versions 5.15.0-1003.5~20.04.25.15.0-1005.7~20.04.15.15.0-1007.10~20.04.15.15.0-1008.12~20.04.15.15.0-1011.15~20.04.2 Show 40 moreShow less5.15.0-1012.16~20.04.15.15.0-1013.17~20.04.15.15.0-1015.19~20.04.15.15.0-1016.21~20.04.15.15.0-1017.22~20.04.15.15.0-1018.23~20.04.15.15.0-1019.24~20.04.15.15.0-1020.25~20.04.15.15.0-1021.26~20.04.15.15.0-1022.27~20.04.15.15.0-1023.28~20.04.15.15.0-1024.29~20.04.15.15.0-1025.30~20.04.15.15.0-1026.31~20.04.15.15.0-1027.32~20.04.15.15.0-1028.33~20.04.15.15.0-1030.35~20.04.15.15.0-1031.37~20.04.15.15.0-1032.38~20.04.15.15.0-1033.39~20.04.15.15.0-1034.40~20.04.15.15.0-1035.41~20.04.15.15.0-1036.42~20.04.15.15.0-1037.43~20.04.15.15.0-1038.44~20.04.15.15.0-1039.45~20.04.15.15.0-1040.46~20.04.15.15.0-1043.50~20.04.15.15.0-1044.51~20.04.15.15.0-1045.52~20.04.15.15.0-1046.53~20.04.15.15.0-1047.54~20.04.15.15.0-1048.55~20.04.15.15.0-1049.56~20.04.15.15.0-1050.57~20.04.15.15.0-1051.58~20.04.15.15.0-1052.59~20.04.15.15.0-1053.60~20.04.15.15.0-1054.61~20.04.15.15.0-1055.62~20.04.1 |
None known |
linux-raspi2Ubuntu:20.04:LTS |
All versions, plus listed versions 5.3.0-1007.85.3.0-1014.165.3.0-1015.175.3.0-1017.195.4.0-1004.45.4.0-1006.6 |
None known |
linux-riscvUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-24.285.4.0-26.305.4.0-27.315.4.0-28.325.4.0-30.34 Show 7 moreShow less5.4.0-31.355.4.0-33.375.4.0-34.385.4.0-36.415.4.0-37.425.4.0-39.445.4.0-40.45 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
linux-intel-iot-realtimeUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.0-1073.75 |
None known |
linux-realtimeUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.0-1032.35 |
None known |
linux-riscvUbuntu:22.04:LTS |
All versions, plus listed versions 5.13.0-1004.45.13.0-1006.6+22.04.15.13.0-1007.7+22.04.15.13.0-1010.11+22.04.15.15.0-1004.4 Show 18 moreShow less5.15.0-1005.55.15.0-1006.65.15.0-1007.75.15.0-1008.85.15.0-1011.125.15.0-1012.135.15.0-1014.165.15.0-1015.175.15.0-1016.185.15.0-1017.195.15.0-1018.215.15.0-1019.225.15.0-1020.235.15.0-1022.265.15.0-1023.275.15.0-1026.305.15.0-1027.315.15.0-1028.32 |
None known |
linux-raspi-realtimeUbuntu:24.04:LTS |
All versions, plus listed versions 6.8.0-2019.20 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Linux Kernel 3.10.0 (CentOS 7) - Denial of Service | 2017-02-12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-5972 is a high vulnerability (CVSS 7.5) in Linux Kernel, published February 14, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 23.9%, the 97th percentile. Fixed in linux 4.4.2-1.
References
seclists.org/oss-sec/2017/q1/573
exploit-db.com/exploits/41350
bugzilla.redhat.com/show_bug.cgi?id=1422081
cxsecurity.com/issue/WLB-2017020112
security-tracker.debian.org/tracker/CVE-2017-5972
githubengineering.com/syn-flood-mitigation-with-synsanity
Show 8 moreShow less
securityfocus.com/bid/96231
packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html
access.redhat.com/security/cve/cve-2017-5972
nvd.nist.gov/vuln/detail/CVE-2017-5972
github.com/advisories/GHSA-f37r-2v2w-7r8w
ubuntu.com/security/CVE-2017-5972
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=e994b2f0fb9229aeff5eea9541320bd7b2ca8714
cve.org/CVERecord?id=CVE-2017-5972
Left out here: 173 versions. The JSON record has them.