CVE-2018-16843

HIGH

nginx <1.15.6, 1.14.1 - Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-16843. PoCs published by flyniu666.

AI-analyzed exploit summary This repository contains build scripts and CI/CD configurations for Kubernetes Ingress-NGINX, specifically targeting CVE-2019-9511. The scripts automate the build and deployment process, including Docker image creation and publishing to Quay.io.

Description

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

Exploits (1)

nomisec WORKING POC
by flyniu666 · poc
https://github.com/flyniu666/ingress-nginx-0.21-1.19.5

This repository contains build scripts and CI/CD configurations for Kubernetes Ingress-NGINX, specifically targeting CVE-2019-9511. The scripts automate the build and deployment process, including Docker image creation and publishing to Quay.io.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Kubernetes Ingress-NGINX (versions 0.21-1.19.5)
No auth needed
Prerequisites: Access to a Kubernetes cluster with Ingress-NGINX deployed · Ability to send crafted HTTP/2 requests
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (12)

Core 12
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4335
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3680
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3681
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105868
Mailing List, Vendor Advisory x_refsource_misc
http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1042038
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3653
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3812-1/
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
Third Party Advisory x_refsource_confirm
https://support.apple.com/kb/HT212818
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Sep/36

Scores

CVSS v3 7.5
EPSS 0.4706
EPSS Percentile 98.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-400
Status published
Products (8)
apple/xcode < 13.0
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 9.0
f5/nginx 1.9.5 - 1.14.1
opensuse/leap 15.1
Published Nov 07, 2018
Tracked Since Feb 18, 2026