Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2017-6464

NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote attackers to cause a denial of service (ntpd crash) via a malformed mode configuration directive.

Published

2017-03-27T17:59:00.807

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.3.0	Yes
Application	ntp	ntp	4.3.1	Yes
Application	ntp	ntp	4.3.2	Yes
Application	ntp	ntp	4.3.3	Yes
Application	ntp	ntp	4.3.4	Yes
Application	ntp	ntp	4.3.5	Yes
Application	ntp	ntp	4.3.6	Yes
Application	ntp	ntp	4.3.7	Yes
Application	ntp	ntp	4.3.8	Yes
Application	ntp	ntp	4.3.9	Yes
Application	ntp	ntp	4.3.10	Yes
Application	ntp	ntp	4.3.11	Yes
Application	ntp	ntp	4.3.12	Yes
Application	ntp	ntp	4.3.13	Yes
Application	ntp	ntp	4.3.14	Yes
Application	ntp	ntp	4.3.15	Yes
Application	ntp	ntp	4.3.16	Yes
Application	ntp	ntp	4.3.17	Yes
Application	ntp	ntp	4.3.18	Yes
Application	ntp	ntp	4.3.19	Yes
Application	ntp	ntp	4.3.20	Yes
Application	ntp	ntp	4.3.21	Yes
Application	ntp	ntp	4.3.22	Yes
Application	ntp	ntp	4.3.23	Yes
Application	ntp	ntp	4.3.24	Yes
Application	ntp	ntp	4.3.25	Yes
Application	ntp	ntp	4.3.26	Yes
Application	ntp	ntp	4.3.27	Yes
Application	ntp	ntp	4.3.28	Yes
Application	ntp	ntp	4.3.29	Yes
Application	ntp	ntp	4.3.30	Yes
Application	ntp	ntp	4.3.31	Yes
Application	ntp	ntp	4.3.32	Yes
Application	ntp	ntp	4.3.33	Yes
Application	ntp	ntp	4.3.34	Yes
Application	ntp	ntp	4.3.35	Yes
Application	ntp	ntp	4.3.36	Yes
Application	ntp	ntp	4.3.37	Yes
Application	ntp	ntp	4.3.38	Yes
Application	ntp	ntp	4.3.39	Yes
Application	ntp	ntp	4.3.40	Yes
Application	ntp	ntp	4.3.41	Yes
Application	ntp	ntp	4.3.42	Yes
Application	ntp	ntp	4.3.43	Yes
Application	ntp	ntp	4.3.44	Yes
Application	ntp	ntp	4.3.45	Yes
Application	ntp	ntp	4.3.46	Yes
Application	ntp	ntp	4.3.47	Yes
Application	ntp	ntp	4.3.48	Yes
Application	ntp	ntp	4.3.49	Yes
Application	ntp	ntp	4.3.50	Yes
Application	ntp	ntp	4.3.51	Yes
Application	ntp	ntp	4.3.52	Yes
Application	ntp	ntp	4.3.53	Yes
Application	ntp	ntp	4.3.54	Yes
Application	ntp	ntp	4.3.55	Yes
Application	ntp	ntp	4.3.56	Yes
Application	ntp	ntp	4.3.57	Yes
Application	ntp	ntp	4.3.58	Yes
Application	ntp	ntp	4.3.59	Yes
Application	ntp	ntp	4.3.60	Yes
Application	ntp	ntp	4.3.61	Yes
Application	ntp	ntp	4.3.62	Yes
Application	ntp	ntp	4.3.63	Yes
Application	ntp	ntp	4.3.64	Yes
Application	ntp	ntp	4.3.65	Yes
Application	ntp	ntp	4.3.66	Yes
Application	ntp	ntp	4.3.67	Yes
Application	ntp	ntp	4.3.68	Yes
Application	ntp	ntp	4.3.69	Yes
Application	ntp	ntp	4.3.70	Yes
Application	ntp	ntp	4.3.71	Yes
Application	ntp	ntp	4.3.72	Yes
Application	ntp	ntp	4.3.73	Yes
Application	ntp	ntp	4.3.74	Yes
Application	ntp	ntp	4.3.75	Yes
Application	ntp	ntp	4.3.76	Yes
Application	ntp	ntp	4.3.77	Yes
Application	ntp	ntp	4.3.78	Yes
Application	ntp	ntp	4.3.79	Yes
Application	ntp	ntp	4.3.80	Yes
Application	ntp	ntp	4.3.81	Yes
Application	ntp	ntp	4.3.82	Yes
Application	ntp	ntp	4.3.83	Yes
Application	ntp	ntp	4.3.84	Yes
Application	ntp	ntp	4.3.85	Yes
Application	ntp	ntp	4.3.86	Yes
Application	ntp	ntp	4.3.87	Yes
Application	ntp	ntp	4.3.88	Yes
Application	ntp	ntp	4.3.89	Yes
Application	ntp	ntp	4.3.90	Yes
Application	ntp	ntp	4.3.91	Yes
Application	ntp	ntp	4.3.92	Yes
Application	ntp	ntp	4.3.93	Yes

References

http://support.ntp.org/bin/view/Main/NtpBug3389 Patch, Vendor Advisory ([email protected])
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/97050 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1038123 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2017:3071 ([email protected])
https://access.redhat.com/errata/RHSA-2018:0855 ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc ([email protected])
https://support.apple.com/HT208144 ([email protected])
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us ([email protected])
http://support.ntp.org/bin/view/Main/NtpBug3389 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/97050 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1038123 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:3071 (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:0855 (af854a3a-2127-422b-91ae-364da2661108)
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/HT208144 (af854a3a-2127-422b-91ae-364da2661108)
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us (af854a3a-2127-422b-91ae-364da2661108)