CVE-2018-16844

HIGH

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.

References

http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html

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://usn.ubuntu.com/3812-1/

https://www.debian.org/security/2018/dsa-4335

Details

Source: MITRE

Published: 2018-11-07

Updated: 2019-06-12

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH