CVE-2018-6534
An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an...
CVE-2018-6534 is a medium vulnerability (CVSS 6.5) in Icinga, published February 27, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.08%, the 65th percentile. Fixed in icinga2 2.8.2-r0.
- Severity
- 6.5 MediumCVSS 3.0, NVD
- Exploit chance
- 1.08%EPSS, 65th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.8.2-r0icinga2 +6 more
Description
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
icinga2Alpine:v3.7 | before 2.8.2-r0 | 2.8.2-r0 |
icinga2Debian:12 | before 2.8.4-1 | 2.8.4-1 |
icinga2Debian:13 | before 2.8.4-1 | 2.8.4-1 |
icinga2Debian:14 | before 2.8.4-1 | 2.8.4-1 |
icingaUbuntu:16.04:LTS | All versions, plus listed versions 1.13.3-11.13.3-21.13.3-2ubuntu0.1 | None known |
icingaUbuntu:18.04:LTS | All versions, plus listed versions 1.13.4-2build1 | None known |
icinga2openSUSE:Tumbleweed From an advisory covering 7 CVEs | before 2.13.1-1.3 | 2.13.1-1.3 |
What each source reports
NVD Score used
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.
- Record
CVE-2018-6534- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2018-6534- Updated
- 2026-11-02
EUVDEUVD-2018-18286No score
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.
- Record
EUVD-2018-18286- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mpx7-h62m-5fwv
An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an...
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.
- Record
GHSA-mpx7-h62m-5fwv- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVALPINE-CVE-2018-6534
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.
- Record
ALPINE-CVE-2018-6534- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSV
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.
- Record
CVE-2018-6534- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-6534
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.
- Record
DEBIAN-CVE-2018-6534- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-6534
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.
- Record
UBUNTU-CVE-2018-6534- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10856-1No score
icinga2-2.13.1-1.3 on GA media
These are all security issues fixed in the icinga2-2.13.1-1.3 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10856-1- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.