ntp 4.2.8p6/4.2.8p7/4.2.8p8/4.2.8p9/4.2.8p10 Symmetric Mode decodearr memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability was found in ntp 4.2.8p6/4.2.8p7/4.2.8p8/4.2.8p9/4.2.8p10. It has been classified as critical. The impacted element is the function decodearr of the component Symmetric Mode. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2018-7183. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in ntp 4.2.8p6/4.2.8p7/4.2.8p8/4.2.8p9/4.2.8p10 (Network Management Software). This affects the function decodearr of the component Symmetric Mode. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.

The bug was discovered 02/28/2018. The weakness was released 03/08/2018 (Website). It is possible to read the advisory at support.ntp.org. This vulnerability is uniquely identified as CVE-2018-7183 since 02/16/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 107046 (FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43630 (Juniper Junos Multiple vulnerabilities in NTP (JSA10898)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107046) and SecurityFocus (BID 103351†). Entries connected to this vulnerability are available at VDB-82983, VDB-114138, VDB-114139 and VDB-114140. Be aware that VulDB is the high quality 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: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 107046
Nessus Name: FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865719
OpenVAS Name: Fedora Update for ntp FEDORA-2018-de113aeac6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/16/2018 🔍
02/27/2018 +11 days 🔍
02/28/2018 +1 days 🔍
02/28/2018 +0 days 🔍
02/28/2018 +0 days 🔍
03/08/2018 +8 days 🔍
03/08/2018 +0 days 🔍
03/09/2018 +1 days 🔍
02/17/2023 +1806 days 🔍

Sourcesinfo

Advisory: SA_18_13
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-7183 (🔍)
GCVE (CVE): GCVE-0-2018-7183
GCVE (VulDB): GCVE-100-114231

OVAL: 🔍

SecurityFocus: 103351 - NTP CVE-2018-7183 Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 03/09/2018 07:47
Updated: 02/17/2023 14:46
Changes: 03/09/2018 07:47 (74), 01/11/2020 15:39 (5), 02/17/2023 14:41 (4), 02/17/2023 14:46 (1)
Complete: 🔍
Cache ID: 216:547:103

Be aware that VulDB is the high quality source for vulnerability data.

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