ntpd up to 4.2.8p8 Source source code

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in ntpd up to 4.2.8p8. Impacted is an unknown function of the component Source Handler. Executing a manipulation can lead to source code. This vulnerability is registered as CVE-2016-7429. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

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. CVE summarizes:

NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.

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 l. 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 databases at Tenable (95616) and SecurityFocus (BID 94453†). Similar entries are available at VDB-11702, VDB-93745, VDB-95317 and VDB-95318. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 🔍
12/23/2024 +2899 days 🔍

Sourcesinfo

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

CVE: CVE-2016-7429 (🔍)
GCVE (CVE): GCVE-0-2016-7429
GCVE (VulDB): GCVE-100-95320

OVAL: 🔍

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

See also: 🔍

Entryinfo

Created: 01/15/2017 10:37
Updated: 12/23/2024 09:48
Changes: 01/15/2017 10:37 (74), 07/21/2020 16:43 (9), 10/28/2022 16:26 (3), 10/28/2022 16:34 (1), 12/23/2024 09:48 (15)
Complete: 🔍
Cache ID: 216:B7C:103

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