CVE-2018-16843

Summary

CVECVE-2018-16843
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-11-07 14:29:00 UTC
Updated2022-02-22 19:27:00 UTC
Descriptionnginx 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.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apple Xcode All All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application F5 Nginx All All All All
Application Nginx Nginx All All All All
Application Nginx Nginx All All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.1 All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
[nginx-announce] nginx security advisory (CVE-2018-16843, CVE-2018-16844) MISC mailman.nginx.org Mailing List, Vendor Advisory
Full Disclosure: APPLE-SA-2021-09-20-4 Xcode 13 FULLDISC seclists.org
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
1644511 – (CVE-2018-16843) CVE-2018-16843 nginx: Excessive memory consumption via flaw in HTTP/2 implementation CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
nginx HTTP/2 Processing Bugs Lets Remote Users Deny Service - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
[security-announce] openSUSE-SU-2019:2120-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
About the security content of Xcode 13 - Apple Support CONFIRM support.apple.com
USN-3812-1: nginx vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
Debian -- Security Information -- DSA-4335-1 nginx DEBIAN www.debian.org Third Party Advisory
nginx Multiple Denial of Service Vulnerabilities BID www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 375873 Apple Xcode Prior to 13 Vulnerability (HT212818)
  • 500426 Alpine Linux Security Update for nginx
  • 504185 Alpine Linux Security Update for nginx
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report