Resource exhaustion in Apache Http_server
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…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.201 (97.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Apache Http_server — versions 2.4.17, 2.4.18, 2.4.20
- Apache Software Foundation Http Server — versions 2.4.17 to 2.4.37
- Netapp Santricity_cloud_connector
- Netapp Storage_automation_store
- Oracle Enterprise_manager_ops_center — versions 12.3.3
- Oracle Hospitality_guest_access — versions 4.2.0, 4.2.1
- Oracle Instantis_enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Retail_xstore_point_of_service — versions 7.0, 7.1
- Oracle Sun_zfs_storage_appliance_kit — versions 8.8.6
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- NeoOniX/5ATTACK
- SzeKiatTan/nlp-cve-vendor-classification
- SzeKiatTan/nlp-cve-vendor-classification-gpt2
- austin-lai/External-Penetration-Testing-Holo-Corporate-Network-TryHackMe-Holo-Network
- bioly230/THM_
- vshaliii/Basic-Pentesting-2-Vulnhub-Walkthrough
- vshaliii/DC-2-Vulnhub-Walkthrough
- vshaliii/DC-3-Vulnhub-Walkthrough
- vshaliii/Funbox2-rookie
References
- security@apache.org (x_refsource_CONFIRM, Vendor Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (vendor-advisory, x_refsource_FEDORA)
- security@apache.org (vendor-advisory, x_refsource_FEDORA)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@apache.org (mailing-list, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory, Issue Tracking)
- security@apache.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@apache.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-17189?
- CVE-2018-17189 is a medium-severity vulnerability in Apache Http_server, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2019-01-30.
- How severe is CVE-2018-17189?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-17189 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.