What’s Vulnerable › Vulnerabilities

CVE-2020-15025

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-24 · updated 2026-06-17
• Weakness: CWE-401

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.

Affected products

• NetApp 8300 Firmware: all versions
• NetApp 8700 Firmware: all versions
• NetApp A400 Firmware: all versions
• NetApp Cloud Backup: all versions
• NetApp H300E Firmware: all versions
• NetApp H300S Firmware: all versions
• NetApp H410C Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500E Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700E Firmware: all versions
• NetApp H700S Firmware: all versions
• NetApp Steelstore Cloud Integrated Storage: all versions
• NTP: from 4.3.97 before 4.3.101; 4.2.8-p11, 4.2.8-p12, 4.2.8-p13, 4.2.8-p14 — fixed in 4.3.101
• openSUSE Leap: 15.1, 15.2
• Oracle Corporation Oracle ZFS Storage Appliance Kit: 8.8

How to fix

Upgrade to a fixed version: NTP 4.3.101. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
• https://bugs.gentoo.org/729458
• https://security.gentoo.org/glsa/202007-12
• https://security.netapp.com/advisory/ntap-20200702-0002/
• https://support.ntp.org/bin/view/Main/NtpBug3661
• https://support.ntp.org/bin/view/Main/SecurityNotice#June_2020_ntp_4_2_8p15_NTP_Relea
• https://www.oracle.com/security-alerts/cpujan2021.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
• https://bugs.gentoo.org/729458
• https://security.gentoo.org/glsa/202007-12

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