CVE-2020-15025

MEDIUM

ntpd - DoS

Title source: llm

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.

References (8)

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html

[Issue Tracking, Third Party Advisory] https://bugs.gentoo.org/729458

[Third Party Advisory] https://security.gentoo.org/glsa/202007-12

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20200702-0002/

[Vendor Advisory] https://support.ntp.org/bin/view/Main/NtpBug3661

[Release Notes, Vendor Advisory] https://support.ntp.org/bin/view/Main/SecurityNotice#June_2020_ntp_4_2_8p15_NTP_Relea

[Patch, Third Party Advisory] https://www.oracle.com/security-alerts/cpujan2021.html

Scores

CVSS v3 4.4

EPSS 0.0312

EPSS Percentile 86.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (21)

ntp/ntp < 4.3.101

ntp/ntp

ntp/ntp

ntp/ntp

ntp/ntp

opensuse/leap

opensuse/leap

netapp/cloud_backup

netapp/steelstore_cloud_integrated_storage

netapp/8300_firmware

netapp/8700_firmware

netapp/a400_firmware

netapp/h410c_firmware

netapp/h300s_firmware

netapp/h500s_firmware

... and 6 more

Timeline

Published Jun 24, 2020

Tracked Since Feb 18, 2026