CVE-2016-2516

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.

References

http://support.ntp.org/bin/view/Main/NtpBug3011

http://www.debian.org/security/2016/dsa-3629

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

http://www.securityfocus.com/bid/88180

http://www.securitytracker.com/id/1035705

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc

https://security.gentoo.org/glsa/201607-15

https://security.netapp.com/advisory/ntap-20171004-0002/

https://www.kb.cert.org/vuls/id/718152

Details

Source: MITRE

Published: 2017-01-30

Updated: 2017-11-21

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.1

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.6

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:ntp:ntp:*:p6:*:*:*:*:*:* versions up to 4.2.8 (inclusive)

Configuration 2

OR

cpe:2.3:a:ntp:ntp:4.3.0:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.1:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.2:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.3:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.4:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.5:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.6:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.7:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.8:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.9:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.10:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.11:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.12:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.13:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.14:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.15:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.16:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.17:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.18:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.19:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.20:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.21:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.22:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.23:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.24:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.25:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.26:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.27:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.28:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.29:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.30:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.31:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.32:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.33:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.34:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.35:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.36:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.37:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.38:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.39:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.40:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.41:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.42:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.43:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.44:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.45:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.46:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.47:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.48:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.49:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.50:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.51:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.52:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.53:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.54:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.55:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.56:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.57:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.58:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.59:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.60:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.61:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.62:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.63:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.64:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.65:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.66:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.67:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.68:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.69:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.70:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.71:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.72:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.73:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.74:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.75:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.76:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.77:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.78:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.79:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.80:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.81:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.82:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.83:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.84:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.85:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.86:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.87:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.88:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.89:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.90:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.91:*:*:*:*:*:*:*

Tenable Plugins

View all (24 total)

IDNameProductFamilySeverity
133079NewStart CGSL CORE 5.05 / MAIN 5.05 : ntp Vulnerability (NS-SA-2020-0009)NessusNewStart CGSL Local Security Checks
medium
132478NewStart CGSL CORE 5.04 / MAIN 5.04 : ntp Vulnerability (NS-SA-2019-0267)NessusNewStart CGSL Local Security Checks
medium
125009EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1556)NessusHuawei Local Security Checks
critical
104100Juniper Junos Space < 17.1R1 Multiple Vulnerabilities (JSA10826)NessusJunos Local Security Checks
high
101311EulerOS 2.0 SP2 : ntp (EulerOS-SA-2017-1125)NessusHuawei Local Security Checks
medium
101310EulerOS 2.0 SP1 : ntp (EulerOS-SA-2017-1124)NessusHuawei Local Security Checks
medium
97153F5 Networks BIG-IP : NTP vulnerability (K24613253)NessusF5 Networks Local Security Checks
medium
93896Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : ntp vulnerabilities (USN-3096-1)NessusUbuntu Local Security Checks
high
93186SUSE SLES10 Security Update : ntp (SUSE-SU-2016:1912-1)NessusSuSE Local Security Checks
critical
92571Debian DSA-3629-1 : ntp - security updateNessusDebian Local Security Checks
high
92546Debian DLA-559-1 : ntp security updateNessusDebian Local Security Checks
high
92485GLSA-201607-15 : NTP: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
92113Fedora 22 : ntp (2016-777d838c1b)NessusFedora Local Security Checks
high
91663SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1568-1)NessusSuSE Local Security Checks
critical
91467Amazon Linux AMI : ntp (ALAS-2016-708)NessusAmazon Linux Local Security Checks
high
91403openSUSE Security Update : ntp (openSUSE-2016-649)NessusSuSE Local Security Checks
critical
91269openSUSE Security Update : ntp (openSUSE-2016-599)NessusSuSE Local Security Checks
critical
91159SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1291-1)NessusSuSE Local Security Checks
critical
91120SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1278-1)NessusSuSE Local Security Checks
critical
91062Fedora 23 : ntp-4.2.6p5-40.fc23 (2016-5b2eb0bf9c)NessusFedora Local Security Checks
high
90977Fedora 24 : ntp-4.2.6p5-40.fc24 (2016-ed8c6c0426)NessusFedora Local Security Checks
high
90923Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p7 Multiple VulnerabilitiesNessusMisc.
critical
90800Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2016-120-01)NessusSlackware Local Security Checks
high
90742FreeBSD : ntp -- multiple vulnerabilities (b2487d9a-0c30-11e6-acd0-d050996490d0)NessusFreeBSD Local Security Checks
high