Buffer overflow in NTP
CVE-2017-6462
Buffer overflow in the legacy Datum Programmable Time Server (DPTS) refclock driver in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via a crafted /dev/datum device.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · 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)
- www.securityfocus.com/bid/97045 (VDB Entry, Third Party Advisory, vdb-entry)
- support.apple.com/HT208144
- usn.ubuntu.com/3707-2/ (vendor-advisory)
- support.ntp.org/bin/view/Main/NtpBug3388 (Patch, Vendor Advisory)
- security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:3071 (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-2017-6462?
- CVE-2017-6462 is a high-severity vulnerability in NTP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-03-27.
- How severe is CVE-2017-6462?
- High severity. CVSS v3 base score is 7.8 out of 10.