CVE-2018-17189medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
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.
References
https://httpd.apache.org/security/vulnerabilities_24.html
https://security.netapp.com/advisory/ntap-20190125-0001/
http://www.securityfocus.com/bid/106685
https://security.gentoo.org/glsa/201903-21
https://seclists.org/bugtraq/2019/Apr/5
https://usn.ubuntu.com/3937-1/
https://www.debian.org/security/2019/dsa-4422
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us
https://access.redhat.com/errata/RHSA-2019:3933
https://access.redhat.com/errata/RHSA-2019:3935
https://access.redhat.com/errata/RHSA-2019:3932
https://access.redhat.com/errata/RHSA-2019:4126
https://www.tenable.com/security/tns-2019-09
https://www.oracle.com/security-alerts/cpujan2020.html
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E
Details
Source: MITRE
Published: 2019-01-30
Updated: 2021-07-06
Type: CWE-400
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Impact Score: 1.4
Exploitability Score: 3.9
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.30:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.33:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.37:*:*:*:*:*:*:*
Configuration 2
OR
Configuration 3
OR
Configuration 4
OR
Configuration 5
OR
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit:8.8.6:*:*:*:*:*:*:*
Configuration 6
OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Configuration 7
AND
OR
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 145821 | CentOS 8 : httpd:2.4 (CESA-2020:4751) | Nessus | CentOS Local Security Checks | critical |
| 142762 | Oracle Linux 8 : httpd:2.4 (ELSA-2020-4751) | Nessus | Oracle Linux Local Security Checks | critical |
| 142397 | RHEL 8 : httpd:2.4 (RHSA-2020:4751) | Nessus | Red Hat Local Security Checks | critical |
| 131476 | EulerOS Virtualization for ARM 64 3.0.3.0 : httpd (EulerOS-SA-2019-2311) | Nessus | Huawei Local Security Checks | high |
| 131216 | RHEL 7 : JBoss Core Services (RHSA-2019:3933) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering) (Resource Loop) | Nessus | Red Hat Local Security Checks | high |
| 131215 | RHEL 6 : JBoss Core Services (RHSA-2019:3932) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering) (Resource Loop) | Nessus | Red Hat Local Security Checks | high |
| 128204 | EulerOS 2.0 SP8 : httpd (EulerOS-SA-2019-1835) | Nessus | Huawei Local Security Checks | high |
| 124870 | Photon OS 1.0: Httpd PHSA-2019-1.0-0230 | Nessus | PhotonOS Local Security Checks | high |
| 124680 | Photon OS 2.0: Httpd PHSA-2019-2.0-0157 | Nessus | PhotonOS Local Security Checks | high |
| 124506 | Fedora 30 : mod_http2 (2019-75b4a34d4f) | Nessus | Fedora Local Security Checks | medium |
| 124303 | Amazon Linux 2 : mod_http2 (ALAS-2019-1197) | Nessus | Amazon Linux Local Security Checks | medium |
| 98537 | Apache 2.4.x < 2.4.38 Multiple Vulnerabilities | Web Application Scanning | Component Vulnerability | high |
| 123787 | Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : apache2 vulnerabilities (USN-3937-1) | Nessus | Ubuntu Local Security Checks | high |
| 123691 | Debian DSA-4422-1 : apache2 - security update | Nessus | Debian Local Security Checks | high |
| 123427 | GLSA-201903-21 : Apache: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 123036 | Fedora 28 : mod_http2 (2019-133a8a7cb5) | Nessus | Fedora Local Security Checks | medium |
| 122978 | Fedora 29 : mod_http2 (2019-0300c36537) | Nessus | Fedora Local Security Checks | medium |
| 122758 | Amazon Linux AMI : httpd24 (ALAS-2019-1166) | Nessus | Amazon Linux Local Security Checks | high |
| 122741 | openSUSE Security Update : apache2 (openSUSE-2019-305) | Nessus | SuSE Local Security Checks | high |
| 122661 | openSUSE Security Update : apache2 (openSUSE-2019-296) | Nessus | SuSE Local Security Checks | high |
| 122477 | SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2019:0504-1) | Nessus | SuSE Local Security Checks | high |
| 122475 | SUSE SLES12 Security Update : apache2 (SUSE-SU-2019:0498-1) | Nessus | SuSE Local Security Checks | high |
| 121355 | Apache 2.4.x < 2.4.38 Multiple Vulnerabilities | Nessus | Web Servers | high |
| 121336 | FreeBSD : Apache -- vulnerability (eb888ce5-1f19-11e9-be05-4c72b94353b5) | Nessus | FreeBSD Local Security Checks | high |
| 121327 | Slackware 14.0 / 14.1 / 14.2 / current : httpd (SSA:2019-022-01) | Nessus | Slackware Local Security Checks | high |