7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.873 High
EPSS
Percentile
98.5%
The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted “KOD” messages.
bugs.ntp.org/show_bug.cgi?id=2901
rhn.redhat.com/errata/RHSA-2015-1930.html
rhn.redhat.com/errata/RHSA-2015-2520.html
support.ntp.org/bin/view/Main/NtpBug2901
support.ntp.org/bin/view/Main/SecurityNotice
www.debian.org/security/2015/dsa-3388
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.securityfocus.com/bid/77280
www.securitytracker.com/id/1033951
bugzilla.redhat.com/show_bug.cgi?id=1271070
eprint.iacr.org/2015/1020.pdf
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839
kc.mcafee.com/corporate/index?page=content&id=SB10284
security.gentoo.org/glsa/201607-15
security.netapp.com/advisory/ntap-20171004-0001/
security.netapp.com/advisory/ntap-20171004-0002/
support.citrix.com/article/CTX220112
www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016
www.cs.bu.edu/~goldbe/NTPattack.html
www.kb.cert.org/vuls/id/718152
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.873 High
EPSS
Percentile
98.5%