Login

Tenable Community & Support

Tenable University

CVE-2015-7975

LOW

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

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

http://support.ntp.org/bin/view/Main/NtpBug2937

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd

http://www.securityfocus.com/bid/81959

http://www.securitytracker.com/id/1034782

http://www.ubuntu.com/usn/USN-3096-1

https://bto.bluecoat.com/security-advisory/sa113

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

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

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc

https://security.gentoo.org/glsa/201607-15

https://security.netapp.com/advisory/ntap-20171031-0001/

https://www.kb.cert.org/vuls/id/718152

Details

Source: MITRE

Published: 2017-01-30

Updated: 2017-11-21

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 6.2

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

Impact Score: 3.6

Exploitability Score: 2.5

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:ntp:ntp:*:p5:*:*:*:*:*:* versions up to 4.2.8 (inclusive)

cpe:2.3:a:ntp:ntp:4.3.0:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.1:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.2:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.3:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.4:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.5:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.6:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.7:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.8:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.10:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.11:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.12:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.13:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.14:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.15:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.16:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.17:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.18:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.19:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.20:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.21:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.22:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.23:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.24:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.25:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.26:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.27:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.28:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.29:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.30:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.31:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.32:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.33:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.34:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.35:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.36:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.37:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.38:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.39:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.40:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.41:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.42:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.43:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.44:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.45:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.46:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.47:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.48:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.49:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.50:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.51:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.52:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.53:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.54:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.55:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.56:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.57:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.58:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.59:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.60:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.61:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.62:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.63:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.64:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.65:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.66:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.67:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.68:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.69:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.70:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.71:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.72:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.73:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.74:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.75:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.76:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.77:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.78:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.79:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.80:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.81:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.82:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.83:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.84:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.85:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.86:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.87:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.88:*:*:*:*:*:*:*

cpe:2.3:a:ntp:ntp:4.3.89:*:*:*:*:*:*:*

Tenable Plugins

View all (13 total)

ID	Name	Product	Family	Severity
106499	pfSense < 2.3 Multiple Vulnerabilities (SA-16_01 - SA-16_02)	Nessus	Firewalls	critical
93896	Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : ntp vulnerabilities (USN-3096-1)	Nessus	Ubuntu Local Security Checks	high
93186	SUSE SLES10 Security Update : ntp (SUSE-SU-2016:1912-1)	Nessus	SuSE Local Security Checks	high
92485	GLSA-201607-15 : NTP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
91403	openSUSE Security Update : ntp (openSUSE-2016-649)	Nessus	SuSE Local Security Checks	high
91248	SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1311-1)	Nessus	SuSE Local Security Checks	high
91111	openSUSE Security Update : ntp (openSUSE-2016-578)	Nessus	SuSE Local Security Checks	medium
90991	SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1247-1)	Nessus	SuSE Local Security Checks	high
90821	SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1177-1)	Nessus	SuSE Local Security Checks	medium
90820	SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1175-1)	Nessus	SuSE Local Security Checks	medium
88912	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2016-054-04)	Nessus	Slackware Local Security Checks	medium
88068	FreeBSD : ntp -- multiple vulnerabilities (5237f5d7-c020-11e5-b397-d050996490d0)	Nessus	FreeBSD Local Security Checks	medium
88054	Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p6 Multiple Vulnerabilities	Nessus	Misc.	medium