VULNERABILITY INTELLIGENCE
CVE-2018-11763
CVSS score5.9 MEDIUM
EPSS probability50.85%
CISA KEVNot currently listed
Published2018-09-25
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
Primary references
- security@apache.org
- security@apache.org
- security@apache.org — Third Party Advisory, VDB Entry
- security@apache.org — Third Party Advisory, VDB Entry
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Vendor Advisory
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org