CVE-2015-7975

MEDIUM

NTP <4.2.8p6, <4.3.90 - DoS

Title source: llm

Description

The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).

References (20)

[Vendor Advisory] https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

[Third Party Advisory] http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

[Vendor Advisory] http://support.ntp.org/bin/view/Main/NtpBug2937

[Third Party Advisory] http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/81959

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1034782

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3096-1

[Third Party Advisory] https://bto.bluecoat.com/security-advisory/sa113

[Vendor Advisory] https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us

[Various Sources] https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc

[Third Party Advisory] https://security.gentoo.org/glsa/201607-15

[Third Party Advisory, US Government Resource] https://www.kb.cert.org/vuls/id/718152

[Vendor Advisory] https://security.netapp.com/advisory/ntap-20171031-0001/

Scores

CVSS v3 6.2

EPSS 0.0041

EPSS Percentile 61.1%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-119

Status published

Affected Products (50)

ntp/ntp < 4.2.8

ntp/ntp

... and 35 more

Timeline

Published Jan 30, 2017

Tracked Since Feb 18, 2026