Vulnerability Monitor

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CVE-2018-17189


In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 13 products from apache, from netapp, from netapp and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2019-01-30T22:29:00.357

Last Modified

2024-11-21T03:54:03.157

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-400

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache http_server 2.4.17 Yes
Application apache http_server 2.4.18 Yes
Application apache http_server 2.4.20 Yes
Application apache http_server 2.4.23 Yes
Application apache http_server 2.4.25 Yes
Application apache http_server 2.4.26 Yes
Application apache http_server 2.4.27 Yes
Application apache http_server 2.4.28 Yes
Application apache http_server 2.4.29 Yes
Application apache http_server 2.4.30 Yes
Application apache http_server 2.4.33 Yes
Application apache http_server 2.4.34 Yes
Application apache http_server 2.4.35 Yes
Application apache http_server 2.4.37 Yes
Application netapp santricity_cloud_connector - Yes
Application netapp storage_automation_store - Yes
Operating System fedoraproject fedora 28 Yes
Operating System fedoraproject fedora 29 Yes
Operating System debian debian_linux 9.0 Yes
Application oracle enterprise_manager_ops_center 12.3.3 Yes
Application oracle hospitality_guest_access 4.2.0 Yes
Application oracle hospitality_guest_access 4.2.1 Yes
Application oracle instantis_enterprisetrack 17.1 Yes
Application oracle instantis_enterprisetrack 17.2 Yes
Application oracle instantis_enterprisetrack 17.3 Yes
Application oracle retail_xstore_point_of_service 7.0 Yes
Application oracle retail_xstore_point_of_service 7.1 Yes
Application oracle sun_zfs_storage_appliance_kit 8.8.6 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 18.10 Yes
Application redhat jboss_core_services 1.0 Yes
Operating System redhat enterprise_linux 6.0 No
Operating System redhat enterprise_linux 7.0 No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.