CVE-2020-15025
MEDIUMCVSS 4.9/10EPSS 3.36%
Last modified
CVE-2020-15025 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.. EPSS estimates a 3.36% chance of exploitation in the next 30 days.
Description
ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Ntp | Ntp | >= 4.3.97, < 4.3.101 | — |
| Ntp | Ntp | 4.2.8 | P11 |
| Opensuse | Leap | 15.1 | — |
| Opensuse | Leap | 15.2 | — |
| Netapp | Cloud Backup | All versions | — |
| Netapp | Steelstore Cloud Integrated Storage | All versions | — |
| Netapp | 8300 Firmware | All versions | — |
| Netapp | 8700 Firmware | All versions | — |
| Netapp | A400 Firmware | All versions | — |
| Netapp | H410c Firmware | All versions | — |
| Netapp | H300s Firmware | All versions | — |
| Netapp | H500s Firmware | All versions | — |
| Netapp | H700s Firmware | All versions | — |
| Netapp | H300e Firmware | All versions | — |
| Netapp | H500e Firmware | All versions | — |
| Netapp | H700e Firmware | All versions | — |
| Netapp | H410s Firmware | All versions | — |
| Oracle | Zfs Storage Appliance Kit | 8.8 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/729458Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202007-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200702-0002/Third Party Advisory
- https://support.ntp.org/bin/view/Main/NtpBug3661Vendor Advisory
- https://support.ntp.org/bin/view/Main/SecurityNotice#June_2020_ntp_4_2_8p15_NTP_ReleaRelease Notes, Vendor Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlMailing List, Third Party Advisory
- https://bugs.gentoo.org/729458Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202007-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200702-0002/Third Party Advisory
- https://support.ntp.org/bin/view/Main/NtpBug3661Vendor Advisory
- https://support.ntp.org/bin/view/Main/SecurityNotice#June_2020_ntp_4_2_8p15_NTP_ReleaRelease Notes, Vendor Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-15025?
ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.
How severe is CVE-2020-15025?
CVE-2020-15025 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 3.36% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15025?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-15025?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST