National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4955 Detail

Description

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.

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

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L (V3 legend)
Impact Score: 1.4
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
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: 2.6 LOW
Vector: (AV:N/AC:H/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 4.9


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

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://bugs.ntp.org/3043
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/NtpBug3043 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/91007
http://www.securitytracker.com/id/1036037
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:oracle:solaris:10:*:*:*:*:*:*:*
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
Configuration 2
OR
cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:*
cpe:2.3:o:novell:opensuse:13.2:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
Configuration 3
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:*:*:*:*:*:*
Showing 100 of 725 CPEs, view all CPEs here.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

11 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4955
NVD Published Date:
07/04/2016
NVD Last Modified:
11/20/2017