CVE-2018-16843
nginx: Excessive memory consumption via flaw in HTTP/2 implementation
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
nginx en versiones anteriores a la 1.15.6 y 1.14.1 tiene una vulnerabilidad en la implementación de HTTP/2 que puede permitir el consumo excesivo de memoria. Este problema afecta a nginx compilado con ngx_http_v2_module (no compilado por defecto) si la opción "hppt2" de la directiva "listen" se emplea en un archivo de configuración.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-09-11 CVE Reserved
- 2018-11-07 CVE Published
- 2024-08-05 CVE Updated
- 2024-08-22 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://seclists.org/fulldisclosure/2021/Sep/36 | Mailing List |
|
| http://www.securityfocus.com/bid/105868 | Third Party Advisory | |
| http://www.securitytracker.com/id/1042038 | Third Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843 | Issue Tracking | |
| https://support.apple.com/kb/HT212818 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html | 2022-02-22 | |
| http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html | 2022-02-22 | |
| https://access.redhat.com/errata/RHSA-2018:3653 | 2022-02-22 | |
| https://access.redhat.com/errata/RHSA-2018:3680 | 2022-02-22 | |
| https://access.redhat.com/errata/RHSA-2018:3681 | 2022-02-22 | |
| https://usn.ubuntu.com/3812-1 | 2022-02-22 | |
| https://www.debian.org/security/2018/dsa-4335 | 2022-02-22 | |
| https://access.redhat.com/security/cve/CVE-2018-16843 | 2018-11-27 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1644511 | 2018-11-27 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| F5 Search vendor "F5" | Nginx Search vendor "F5" for product "Nginx" | > 1.9.5 < 1.14.1 Search vendor "F5" for product "Nginx" and version " > 1.9.5 < 1.14.1" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Nginx Search vendor "F5" for product "Nginx" | > 1.15.0 < 1.15.6 Search vendor "F5" for product "Nginx" and version " > 1.15.0 < 1.15.6" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Xcode Search vendor "Apple" for product "Xcode" | < 13.0 Search vendor "Apple" for product "Xcode" and version " < 13.0" | - |
Affected
| ||||||