Resource exhaustion in Apple Xcode
CVE-2018-16844
nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' opti…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.124 (95.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apple Xcode
- F5 Nginx
- [Unknown] Nginx — versions 1.15.6, 1.14.1
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- ChiomaDibor/Vulnerability-Management-of-a-Web-Server-Using-Nessus-and-Patch-Management-with-Ansible
- ConstantaNF/RPM
- Cybervixy/Vulnerability-Management
- Dekkert/dz6_
- Oju-kwu/Vulnerability-Management-Lab
- Teedico/Nessus_
- adastraaero/OTUS_
- anitazhaochen/anitazhaochen.github.io
- flyniu666/ingress-nginx-0.21-1.19.5
References
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (x_refsource_CONFIRM, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (Mailing List, x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-16844?
- CVE-2018-16844 is a high-severity vulnerability in Apple Xcode, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-11-07.
- How severe is CVE-2018-16844?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-16844 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.