National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-4956 Detail

Description

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.

Source:  MITRE
Description Last Modified:  07/04/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L (V3 legend)
Impact Score: 1.4
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.ntp.org/3042
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html Third Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug3042 Patch Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice Vendor Advisory
http://www.kb.cert.org/vuls/id/321640 Third Party Advisory US Government Resource
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securityfocus.com/bid/91009
http://www.securitytracker.com/id/1036037
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03757en_us
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc
https://security.gentoo.org/glsa/201607-15

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp2:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp3:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp2:*:*:ltss:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:ltss:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*
cpe:2.3:o:novell:suse_manager:2.1:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_manager_proxy:2.1:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_openstack_cloud:5:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
Configuration 2
OR
cpe:2.3:a:ntp:ntp:4.0.72:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.73:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.90:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.91:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.92:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.93:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.94:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.95:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.96:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.97:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.98:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.0.99:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.2:p1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.2:p2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.2:p3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.2:p4:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p0:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p4:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p5:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p6:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc4:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc5:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc6:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p7_rc7:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.4:p8:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p124:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p125:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p126:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p127:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p128:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p129:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p130:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p131:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p132:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p133:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p134:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p135:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p136:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p137:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p138:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p139:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p140:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p141:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p142:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p143:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p144:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p145:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p146:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p147:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p148:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p149:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p150:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p151:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p152:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p153:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p154:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p155:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p156:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p157:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p158:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p159:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p160:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p161:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p162:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p163:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p164:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p165:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p166:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p167:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p168:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p169:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p170:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p171:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p172:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p173:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p174:*:*:*:*:*:*
Configuration 3
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Change History

14 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4956
NVD Published Date:
07/04/2016
NVD Last Modified:
10/30/2018