CVE-2017-6464

high-risk

Published 2017-03-27

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.

Do I need to act?

2.5% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

NETWORK / LOW complexity

Affected Products (20)

Ntp

Affected Vendors

Ntp

References (18)

Patch http://support.ntp.org/bin/view/Main/NtpBug3389

Vendor Advisory http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_...

Third Party Advisory http://www.securityfocus.com/bid/97050

Third Party Advisory http://www.securitytracker.com/id/1038123

https://access.redhat.com/errata/RHSA-2017:3071

https://access.redhat.com/errata/RHSA-2018:0855

https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc

https://support.apple.com/HT208144

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpe...