Vulnerability Description
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ntp | Ntp | < 4.2.8 |
| Netapp | Cloud Backup | - |
| Netapp | Clustered Data Ontap | - |
| Netapp | Data Ontap | - |
| Netapp | Element Software | - |
| Netapp | Hci Management Node | - |
| Netapp | Ontap Tools | - |
| Netapp | Solidfire | - |
| Netapp | Steelstore Cloud Integrated Storage | - |
| Netapp | Hci Compute Node Firmware | - |
| Netapp | Hci Compute Node | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlMailing ListThird Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3596Vendor Advisory
- https://bugs.ntp.org/show_bug.cgi?id=3596Issue TrackingVendor Advisory
- https://security.gentoo.org/glsa/202007-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200625-0004/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlMailing ListThird Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3596Vendor Advisory
- https://bugs.ntp.org/show_bug.cgi?id=3596Issue TrackingVendor Advisory
- https://security.gentoo.org/glsa/202007-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200625-0004/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
FAQ
What is CVE-2020-13817?
CVE-2020-13817 is a vulnerability with a CVSS score of 7.4 (HIGH). ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packe...
How severe is CVE-2020-13817?
CVE-2020-13817 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-13817?
Check the references section above for vendor advisories and patch information. Affected products include: Ntp Ntp, Netapp Cloud Backup, Netapp Clustered Data Ontap, Netapp Data Ontap, Netapp Element Software.