Test ID:	1.3.6.1.4.1.25623.1.0.150702
Category:	General
Title:	NTP < 4.2.8p15 DoS Vulnerability
Summary:	Systems that use a CMAC algorithm in ntp.keys will not release a; bit of memory on each packet that uses a CMAC keyid, eventually causing ntpd to run out of memory; and fail. The CMAC cleanup introduced a bug whereby the CMAC data structure was no longer; completely removed.
Description:	Summary: Systems that use a CMAC algorithm in ntp.keys will not release a bit of memory on each packet that uses a CMAC keyid, eventually causing ntpd to run out of memory and fail. The CMAC cleanup introduced a bug whereby the CMAC data structure was no longer completely removed. Vulnerability Insight: Please see the references for more information on the vulnerabilities. Affected Software/OS: NTPd version prior to 4.2.8p15, 4.3.x prior to version 4.3.101. Solution: Update to version 4.2.8p15, 4.3.101 or later. CVSS Score: 4.0 CVSS Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-15025 https://security.netapp.com/advisory/ntap-20200702-0002/ https://security.gentoo.org/glsa/202007-12 https://bugs.gentoo.org/729458 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 SuSE Security Announcement: openSUSE-SU-2020:0934 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html SuSE Security Announcement: openSUSE-SU-2020:1007 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
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