Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Nginx | < 1.14.1 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Opensuse | Leap | 15.1 |
| Apple | Xcode | < 13.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.htmlMailing ListThird Party Advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.htmlMailing ListVendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/105868Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042038Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3653Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3680Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3681Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843Issue TrackingThird Party Advisory
- https://support.apple.com/kb/HT212818Third Party Advisory
- https://usn.ubuntu.com/3812-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4335Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.htmlMailing ListThird Party Advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.htmlMailing ListVendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
FAQ
What is CVE-2018-16843?
CVE-2018-16843 is a vulnerability with a CVSS score of 7.5 (HIGH). 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_modu...
How severe is CVE-2018-16843?
CVE-2018-16843 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-16843?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Nginx, Debian Debian Linux, Canonical Ubuntu Linux, Opensuse Leap, Apple Xcode.