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Fencer Intel
medium 5.8

CVE-2014-9750 json

ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive informa…

published 2015-10-04 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-9556

cvss
5.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.1%
EPSS 6.1% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.

Patch / fix

  • ntp ntp 4.2.8
  • ntp Debian 11 1:4.2.6.p5+dfsg-5

debian advisories DEBIAN-CVE-2014-9750

  • ntp RHEL 7 4.2.6p5-22.el7
  • sntp RHEL 7 4.2.6p5-22.el7
  • ntpdate RHEL 7 4.2.6p5-22.el7
  • ntp-perl RHEL 7 4.2.6p5-22.el7
  • ntp RHEL 6 4.2.6p5-5.el6
  • ntpdate RHEL 6 4.2.6p5-5.el6
  • ntp-perl RHEL 6 4.2.6p5-5.el6

red hat advisories RHSA-2015:2231RHSA-2015:1459

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-9750 updated cvss 2.6

ntp: vallen in extension fields are not validated

  • Red Hat Enterprise Linux 5 ntp
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) ntp 4.2.6p5-22.el7, ntpdate 4.2.6p5-22.el7 Red Hat Enterprise Linux Client Optional (v. 7) sntp 4.2.6p5-22.el7, ntp-perl 4.2.6p5-22.el7 Red Hat Enterprise Linux ComputeNode (v. 7) ntp 4.2.6p5-22.el7, ntpdate 4.2.6p5-22.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) sntp 4.2.6p5-22.el7, ntp-perl 4.2.6p5-22.el7
    fixed: vendor fix RHSA-2015:2231
  • Red Hat Enterprise Linux Desktop (v. 6) ntp 4.2.6p5-5.el6, ntpdate 4.2.6p5-5.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) ntp-perl 4.2.6p5-5.el6 Red Hat Enterprise Linux HPC Node (v. 6) ntp 4.2.6p5-5.el6, ntpdate 4.2.6p5-5.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) ntp-perl 4.2.6p5-5.el6 Red Hat Enterprise Linux Server (v. 6) ntp 4.2.6p5-5.el6, ntpdate 4.2.6p5-5.el6
    fixed: vendor fix RHSA-2015:1459
  • Red Hat Enterprise Linux Server (v. 7) ntp 4.2.6p5-22.el7, ntpdate 4.2.6p5-22.el7
    fixed: vendor fix RHSA-2015:2231
  • Red Hat Enterprise Linux Server Optional (v. 6) ntp-perl 4.2.6p5-5.el6
    fixed: vendor fix RHSA-2015:1459
  • Red Hat Enterprise Linux Server Optional (v. 7) sntp 4.2.6p5-22.el7, ntp-perl 4.2.6p5-22.el7
    fixed: vendor fix RHSA-2015:2231
  • Red Hat Enterprise Linux Workstation (v. 6) ntp 4.2.6p5-5.el6, ntpdate 4.2.6p5-5.el6
    fixed: vendor fix RHSA-2015:1459
  • Red Hat Enterprise Linux Workstation (v. 7) ntp 4.2.6p5-22.el7, ntpdate 4.2.6p5-22.el7
    fixed: vendor fix RHSA-2015:2231
show 2 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) ntp-perl 4.2.6p5-5.el6
    fixed: vendor fix RHSA-2015:1459
  • Red Hat Enterprise Linux Workstation Optional (v. 7) sntp 4.2.6p5-22.el7, ntp-perl 4.2.6p5-22.el7
    fixed: vendor fix RHSA-2015:2231

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.13% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.