Resource exhaustion in [Unknown] Nginx
CVE-2018-16843
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 'ht…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.578 (98.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- [Unknown] Nginx — versions 1.15.6, 1.14.1
Weakness classification (CWE)
Public proof-of-concept exploits
- flyniu666/ingress-nginx-0.21-1.19.5
- ARPSyndicate/cve-scores
- ARPSyndicate/cvemon
- ChiomaDibor/Vulnerability-Management-of-a-Web-Server-Using-Nessus-and-Patch-Management-with-Ansible
- ConstantaNF/RPM
- Cybervixy/Vulnerability-Management
- Deeoojo/Vulnerability-Management-Nessus-Ansible-
- Dekkert/dz6_
- Dorakhris/Vulnerability-Assessment-lab
- Oju-kwu/Vulnerability-Management-Lab
References
- DSA-4335 (vendor-advisory, x_refsource_DEBIAN)
- RHSA-2018:3680 (x_refsource_REDHAT, vendor-advisory)
- RHSA-2018:3681 (x_refsource_REDHAT, vendor-advisory)
- 105868 (vdb-entry, x_refsource_BID)
- mailman.nginx.org/pipermail/nginx-announce/2018/000220.html (x_refsource_MISC)
- 1042038 (vdb-entry, x_refsource_SECTRACK)
- bugzilla.redhat.com/show_bug.cgi (x_refsource_CONFIRM)
- RHSA-2018:3653 (x_refsource_REDHAT, vendor-advisory)
- USN-3812-1 (x_refsource_UBUNTU, vendor-advisory)
- openSUSE-SU-2019:2120 (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2018-16843?
- CVE-2018-16843 is a medium-severity vulnerability in [Unknown] Nginx, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2018-11-07.
- How severe is CVE-2018-16843?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-16843 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.