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Vulnerability Details : CVE-2016-4956

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.
Publish Date : 2016-07-05 Last Update Date : 2021-07-16
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2016-4956

# Product Type Vendor Product Version Update Edition Language
1 OS Novell Suse Manager 2.1 * * * Version Details Vulnerabilities
2 Application NTP NTP * * * * Version Details Vulnerabilities
3 Application NTP NTP 4.2.8 P6 * * Version Details Vulnerabilities
4 Application NTP NTP 4.2.8 P2 * * Version Details Vulnerabilities
5 Application NTP NTP 4.2.8 P1-beta2 * * Version Details Vulnerabilities
6 Application NTP NTP 4.2.8 P2-rc1 * * Version Details Vulnerabilities
7 Application NTP NTP 4.2.8 P3-rc3 * * Version Details Vulnerabilities
8 Application NTP NTP 4.2.8 P5 * * Version Details Vulnerabilities
9 Application NTP NTP 4.2.8 P1-beta3 * * Version Details Vulnerabilities
10 Application NTP NTP 4.2.8 P1-beta4 * * Version Details Vulnerabilities
11 Application NTP NTP 4.2.8 P3-rc2 * * Version Details Vulnerabilities
12 Application NTP NTP 4.2.8 P3 * * Version Details Vulnerabilities
13 Application NTP NTP 4.2.8 P1-beta5 * * Version Details Vulnerabilities
14 Application NTP NTP 4.2.8 P3-rc1 * * Version Details Vulnerabilities
15 Application NTP NTP 4.2.8 - * * Version Details Vulnerabilities
16 Application NTP NTP 4.2.8 P4 * * Version Details Vulnerabilities
17 Application NTP NTP 4.2.8 P1-rc1 * * Version Details Vulnerabilities
18 Application NTP NTP 4.2.8 P1 * * Version Details Vulnerabilities
19 Application NTP NTP 4.2.8 P2-rc3 * * Version Details Vulnerabilities
20 Application NTP NTP 4.2.8 P7 * * Version Details Vulnerabilities
21 Application NTP NTP 4.2.8 P1-rc2 * * Version Details Vulnerabilities
22 Application NTP NTP 4.2.8 P1-beta1 * * Version Details Vulnerabilities
23 Application NTP NTP 4.2.8 P2-rc2 * * Version Details Vulnerabilities
24 OS Opensuse Leap 42.1 * * * Version Details Vulnerabilities
25 OS Opensuse Opensuse 13.2 * * * Version Details Vulnerabilities
26 OS Oracle Solaris 10 * * * Version Details Vulnerabilities
27 OS Oracle Solaris 11.3 * * * Version Details Vulnerabilities
28 OS Suse Linux Enterprise Desktop 12 SP1 * * Version Details Vulnerabilities
29 OS Suse Linux Enterprise Server 11 SP3 * * Version Details Vulnerabilities
30 OS Suse Linux Enterprise Server 11 SP4 * * Version Details Vulnerabilities
31 OS Suse Linux Enterprise Server 11 SP2 * * Version Details Vulnerabilities
32 OS Suse Linux Enterprise Server 12 SP1 * * Version Details Vulnerabilities
33 Application Suse Manager Proxy 2.1 * * * Version Details Vulnerabilities
34 Application Suse Openstack Cloud 5 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Novell Suse Manager 1
NTP NTP 22
Opensuse Leap 1
Opensuse Opensuse 1
Oracle Solaris 2
Suse Linux Enterprise Desktop 1
Suse Linux Enterprise Server 4
Suse Manager Proxy 1
Suse Openstack Cloud 1

- References For CVE-2016-4956

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
SUSE SUSE-SU-2016:1584
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html
SUSE SUSE-SU-2016:1602
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html
SUSE openSUSE-SU-2016:1636
http://www.securityfocus.com/bid/91009
BID 91009 NTP CVE-2016-4956 Incomplete Fix Denial of Service Vulnerability Release Date:2016-10-10
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc
FREEBSD FreeBSD-SA-16:24
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf CONFIRM
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03757en_us CONFIRM
http://www.securitytracker.com/id/1036037
SECTRACK 1036037
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
SUSE SUSE-SU-2016:1563
http://support.ntp.org/bin/view/Main/NtpBug3042 CONFIRM
http://bugs.ntp.org/3042 CONFIRM
http://support.ntp.org/bin/view/Main/SecurityNotice CONFIRM
http://www.kb.cert.org/vuls/id/321640
CERT-VN VU#321640
https://security.gentoo.org/glsa/201607-15
GENTOO GLSA-201607-15
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
SUSE openSUSE-SU-2016:1583

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2016-4956

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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