CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.4	$0-$5k	0.00

A vulnerability classified as problematic was found in ntpd up to 4.2.8p8 (Network Management Software). This vulnerability affects an unknown functionality of the component Source Handler. The manipulation with an unknown input leads to a source code vulnerability. The CWE definition for the vulnerability is CWE-18. As an impact it is known to affect availability.

The bug was discovered 11/21/2016. The weakness was published 01/13/2017 by Miroslav Lichvar with Red Hat (Website). The advisory is shared for download at nwtime.org. This vulnerability was named CVE-2016-7429 since 09/09/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 95616 (Fedora 23 : ntp (2016-e8a8561ee7)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 390164 (Oracle VM Server for x86 Security Update for ntp (OVMSA-2018-0290)).

Upgrading to version 4.2.8p9 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95616). Similar entries are available at 11702, 93745, 95317 and 95318.

Productinfo

Type

• Network Management Software

Name

• ntpd

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Source code
CWE: CWE-18 / CWE-17
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 95616
Nessus Name: Fedora 23 : ntp (2016-e8a8561ee7)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841785
OpenVAS Name: Fedora Update for ntp FEDORA-2016-c198d15316
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ntpd 4.2.8p9

Timelineinfo

09/09/2016 🔍
11/21/2016 +73 days 🔍
11/21/2016 +0 days 🔍
12/07/2016 +16 days 🔍
12/08/2016 +1 days 🔍
01/13/2017 +36 days 🔍
01/13/2017 +0 days 🔍
01/15/2017 +2 days 🔍
10/28/2022 +2112 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-e8a8561ee7
Researcher: Miroslav Lichvar
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-7429 (🔍)
OVAL: 🔍

SecurityTracker: 1037354
SecurityFocus: 94453 - NTP CVE-2016-7429 Local Denial of Service Vulnerability
OSVDB: - CVE-2016-7429 - NTP - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 01/15/2017 10:37 AM
Updated: 10/28/2022 04:34 PM
Changes: 01/15/2017 10:37 AM (74), 07/21/2020 04:43 PM (9), 10/28/2022 04:26 PM (3), 10/28/2022 04:34 PM (1)
Complete: 🔍

Discussion

Do you want to use VulDB in your project?

Use the official API to access entries easily!