National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-7426 Detail

Current Description

NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L (V3.0 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): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
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://nwtime.org/ntp428p9_release/ Release Notes Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0252.html
http://support.ntp.org/bin/view/Main/NtpBug3071 Issue Tracking Mitigation Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities Vendor Advisory
http://www.securityfocus.com/bid/94451 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037354
https://bto.bluecoat.com/security-advisory/sa139
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
https://usn.ubuntu.com/3707-2/
https://www.kb.cert.org/vuls/id/633847 Third Party Advisory US Government Resource

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ntp:ntp:4.2.5:p203:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p204:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p205:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p206:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p207:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p208:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p209:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p210:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p211:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p212:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p213:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p214:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p215:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p216:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p217:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p218:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p219:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p220:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p221:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p222:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p223:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p224:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p225:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p226:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p227:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p228:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p229:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p230:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p231_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p232_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p233_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p234_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p235_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p236_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p237_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p238_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p239_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p240_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p241_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p242_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p243_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p244_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p245_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p246_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p247_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p248_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p249_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.5:p250_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:*:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc3:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc4:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc5:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p1_rc6:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc3:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc4:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc5:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc6:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p2_rc7:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_beta1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc10:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc11:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc12:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc3:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc4:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc5:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc6:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc7:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc8:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p3_rc9:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p4:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p4_beta1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p4_beta2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p4_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p4_rc2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p5:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p5_rc1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p5_rc2:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.6:p5_rc3:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:*:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p0:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p1:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p10:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p100:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p101:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p102:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p103:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p104:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p105:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p106:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p107:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p108:*:*:*:*:*:*
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 cpe:2.3:a:ntp:ntp:4.2.7:p109:*:*:*:*:*:*
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Showing 100 of 595 CPEs, view all CPEs here.

Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7426
NVD Published Date:
01/13/2017
NVD Last Modified:
01/24/2019