CVE-2018-11763

Impact:
Moderate
Public Date:
2018-09-25
CWE:
CWE-20
Bugzilla:
1633399: CVE-2018-11763 httpd: DoS for HTTP/2 connections by continuous SETTINGS frames

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-11763 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Software Collections for Red Hat Enterprise Linux 6 (httpd24-httpd) RHSA-2018:3558 2018-11-13
Red Hat Software Collections for Red Hat Enterprise Linux 7 (httpd24-httpd) RHSA-2018:3558 2018-11-13

Affected Packages State

Platform Package State
Red Hat Virtualization 4 httpd Not affected
Red Hat Mobile Application Platform On-Premise 4 httpd Will not fix
Red Hat JBoss Web Server 3 httpd Affected
Red Hat JBoss EWS 2 httpd Not affected
Red Hat JBoss EAP 6 httpd Not affected
Red Hat JBoss EAP 5 httpd Not affected
Red Hat JBoss Core Services 1 httpd Affected
Red Hat Enterprise Linux 7 httpd Not affected
Red Hat Enterprise Linux 6 httpd Not affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation