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Vulnerability record · CVE-2014-9750 · published 6 October 2015

CVE-2014-9750: Ntp improper input validation vulnerability

Ntp · Ntp

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.

5.8 CVSS 2.0 Medium EPSS 6.1% · top 6.8% CWE-20 · Improper input validation
5.8CVSS 2.0 base score
6.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:M/Au:N/C:P/I:N/A:P

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.ntp.org/show_bug.cgi?id=2671 Issue TrackingPatchVendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1459.html Third Party Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#December_2014_NTP_Security_Vulne Release NotesVendor Advisory
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory
http://www.kb.cert.org/vuls/id/852879 Third Party AdvisoryUS Government Resource
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html Third Party Advisory
http://www.securityfocus.com/bid/72583 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1184573 Issue TrackingPatchThird Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us Third Party Advisory
http://bugs.ntp.org/show_bug.cgi?id=2671 Issue TrackingPatchVendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1459.html Third Party Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#December_2014_NTP_Security_Vulne Release NotesVendor Advisory
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory
http://www.kb.cert.org/vuls/id/852879 Third Party AdvisoryUS Government Resource
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html Third Party Advisory
http://www.securityfocus.com/bid/72583 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1184573 Issue TrackingPatchThird Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2014-9750), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.