ntp 4.2.8p5 ntpq infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in ntp 4.2.8p5. Affected by this vulnerability is an unknown functionality of the component ntpq. The manipulation results in infinite loop. This vulnerability is reported as CVE-2015-8158. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ntp 4.2.8p5 (Network Management Software). Affected is an unknown code block of the component ntpq. The manipulation with an unknown input leads to a infinite loop vulnerability. CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. This is going to have an impact on availability. CVE summarizes:

The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (infinite loop) via crafted packets with incorrect values.

The weakness was disclosed 01/19/2016 as confirmed security notice (Website). The advisory is shared for download at support.ntp.org. This vulnerability is traded as CVE-2015-8158 since 11/13/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 88054 (SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1311-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 330001 (IBM AIX NTP Multiple Vulnerabilities).

Upgrading to version 4.2.8p6 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (110026), Tenable (88054), SecurityFocus (BID 81814†) and Vulnerability Center (SBV-56278†). The entries VDB-80644, VDB-80645, VDB-80646 and VDB-80647 are pretty similar. 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: 5.6
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88054
Nessus Name: SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1311-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900567
OpenVAS Name: Fedora Update for ntp FEDORA-2016-8
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ntp 4.2.8p6

Timelineinfo

11/13/2015 🔍
01/19/2016 +67 days 🔍
01/25/2016 +6 days 🔍
01/26/2016 +1 days 🔍
01/29/2016 +3 days 🔍
01/30/2017 +367 days 🔍
07/06/2022 +1983 days 🔍

Sourcesinfo

Advisory: RHSA-2016:2583
Status: Confirmed

CVE: CVE-2015-8158 (🔍)
GCVE (CVE): GCVE-0-2015-8158
GCVE (VulDB): GCVE-100-80652

OVAL: 🔍

X-Force: 110026 - NTP ntpq denial of service
SecurityFocus: 81814
SecurityTracker: 1034782
Vulnerability Center: 56278 - [cisco-sa-20160127-ntpd] Cisco Multiple Products Remote DoS and Security Bypass due to an Issue in NTP Server - CVE-2015-8158, High

See also: 🔍

Entryinfo

Created: 01/25/2016 13:50
Updated: 07/06/2022 09:05
Changes: 01/25/2016 13:50 (42), 06/08/2017 23:47 (30), 07/06/2022 09:00 (3), 07/06/2022 09:03 (11), 07/06/2022 09:05 (1)
Complete: 🔍
Cache ID: 216:842:103

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