Improper input validation in NTP
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
- NTP — versions 4.2.8, 4.3.0, 4.3.1
Weakness classification (CWE)
References
- www.securitytracker.com/id/1038123 (VDB Entry, Third Party Advisory, vdb-entry)
- support.apple.com/HT208144
- security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc (vendor-advisory)
- www.securityfocus.com/bid/97050 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:3071 (vendor-advisory)
- support.ntp.org/bin/view/Main/NtpBug3389 (Patch, Vendor Advisory)
- support.ntp.org/bin/view/Main/SecurityNotice (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:0855 (vendor-advisory)
- support.hpe.com/hpsc/doc/public/display
Frequently asked questions
- What is CVE-2017-6464?
- CVE-2017-6464 is a medium-severity vulnerability in NTP, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-03-27.
- How severe is CVE-2017-6464?
- Medium severity. CVSS v3 base score is 6.5 out of 10.