Icinga up to 2.8.1 null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Icinga up to 2.8.1. This impacts an unknown function. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2018-6534. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Icinga up to 2.8.1. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an attacker can cause a NULL pointer dereference, which can cause the product to crash.

The bug was discovered 02/21/2018. The weakness was shared 02/27/2018 (GitHub Repository). The advisory is available at github.com. This vulnerability was named CVE-2018-6534 since 02/02/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 258012 (Linux Distros Unpatched Vulnerability : CVE-2018-6534), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (258012). The entries VDB-113915, VDB-113913 and VDB-113912 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 258012
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-6534

OpenVAS ID: 865434
OpenVAS Name: Icinga2 < 2.8.2 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

02/02/2018 🔍
02/21/2018 +19 days 🔍
02/27/2018 +6 days 🔍
02/27/2018 +0 days 🔍
02/28/2018 +1 days 🔍
08/28/2025 +2738 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-6534 (🔍)
GCVE (CVE): GCVE-0-2018-6534
GCVE (VulDB): GCVE-100-113914
See also: 🔍

Entryinfo

Created: 02/28/2018 09:16
Updated: 08/28/2025 07:53
Changes: 02/28/2018 09:16 (59), 01/09/2020 10:33 (2), 02/16/2023 08:27 (4), 08/28/2025 07:53 (22)
Complete: 🔍
Cache ID: 216:15D:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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