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Vulnerability Details : CVE-2018-11763

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.
Publish Date : 2018-09-25 Last Update Date : 2019-06-11
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Products Affected By CVE-2018-11763

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server 2.4.17 Version Details Vulnerabilities
2 Application Apache Http Server 2.4.18 Version Details Vulnerabilities
3 Application Apache Http Server 2.4.19 Version Details Vulnerabilities
4 Application Apache Http Server 2.4.20 Version Details Vulnerabilities
5 Application Apache Http Server 2.4.21 Version Details Vulnerabilities
6 Application Apache Http Server 2.4.22 Version Details Vulnerabilities
7 Application Apache Http Server 2.4.23 Version Details Vulnerabilities
8 Application Apache Http Server 2.4.24 Version Details Vulnerabilities
9 Application Apache Http Server 2.4.25 Version Details Vulnerabilities
10 Application Apache Http Server 2.4.26 Version Details Vulnerabilities
11 Application Apache Http Server 2.4.27 Version Details Vulnerabilities
12 Application Apache Http Server 2.4.28 Version Details Vulnerabilities
13 Application Apache Http Server 2.4.29 Version Details Vulnerabilities
14 Application Apache Http Server 2.4.30 Version Details Vulnerabilities
15 Application Apache Http Server 2.4.32 Version Details Vulnerabilities
16 Application Apache Http Server 2.4.33 Version Details Vulnerabilities
17 Application Apache Http Server 2.4.34 Version Details Vulnerabilities
18 OS Canonical Ubuntu Linux 18.04 ~~lts~~~ Version Details Vulnerabilities
19 Application Netapp Storage Automation Store - Version Details Vulnerabilities
20 Application Oracle Enterprise Manager Ops Center 12.3.3 Version Details Vulnerabilities
21 Application Oracle Hospitality Guest Access 4.2.0 Version Details Vulnerabilities
22 Application Oracle Hospitality Guest Access 4.2.1 Version Details Vulnerabilities
23 Application Oracle Instantis Enterprisetrack 17.1 Version Details Vulnerabilities
24 Application Oracle Instantis Enterprisetrack 17.2 Version Details Vulnerabilities
25 Application Oracle Instantis Enterprisetrack 17.3 Version Details Vulnerabilities
26 Application Oracle Retail Xstore Point Of Service 7.0 Version Details Vulnerabilities
27 Application Oracle Retail Xstore Point Of Service 7.1 Version Details Vulnerabilities
28 Application Oracle Secure Global Desktop 5.4 Version Details Vulnerabilities
29 OS Redhat Enterprise Linux 6.0 Version Details Vulnerabilities
30 OS Redhat Enterprise Linux 7.0 Version Details Vulnerabilities
31 OS Redhat Enterprise Linux 7.4 Version Details Vulnerabilities
32 OS Redhat Enterprise Linux 7.5 Version Details Vulnerabilities
33 OS Redhat Enterprise Linux 7.6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 17
Canonical Ubuntu Linux 1
Netapp Storage Automation Store 1
Oracle Enterprise Manager Ops Center 1
Oracle Hospitality Guest Access 2
Oracle Instantis Enterprisetrack 3
Oracle Retail Xstore Point Of Service 2
Oracle Secure Global Desktop 1
Redhat Enterprise Linux 5

- References For CVE-2018-11763

https://usn.ubuntu.com/3783-1/
UBUNTU USN-3783-1
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html CONFIRM
https://access.redhat.com/errata/RHSA-2019:0366
REDHAT RHSA-2019:0366
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html
SUSE openSUSE-SU-2019:1547
https://access.redhat.com/errata/RHSA-2018:3558
REDHAT RHSA-2018:3558
https://httpd.apache.org/security/vulnerabilities_24.html CONFIRM
https://security.netapp.com/advisory/ntap-20190204-0004/ CONFIRM
http://www.securityfocus.com/bid/105414
BID 105414 Apache HTTP Server CVE-2018-11763 Denial of Service Vulnerability Release Date:2019-04-17
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us CONFIRM
http://www.securitytracker.com/id/1041713
SECTRACK 1041713
https://access.redhat.com/errata/RHSA-2019:0367
REDHAT RHSA-2019:0367
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

- Metasploit Modules Related To CVE-2018-11763

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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