CVE-2018-16844
Published: August 31, 2023Last modified: August 31, 2023
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 CPU usage. 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | nginx | Not affected (1.22.1-r0) |
| Stream | nginx | Not affected (1.24.0-r11) |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
- http://seclists.org/fulldisclosure/2021/Sep/36
- http://www.securityfocus.com/bid/105868
- http://www.securitytracker.com/id/1042038
- https://access.redhat.com/errata/RHSA-2018:3680
- https://access.redhat.com/errata/RHSA-2018:3681
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16844
- https://support.apple.com/kb/HT212818
- https://usn.ubuntu.com/3812-1/
- https://www.debian.org/security/2018/dsa-4335