CVE-2018-17189

httpd: mod_http2: DoS via slow, unneeded request bodies

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Severity

Low

Red Hat Product Security

4.3

CVSS 3.0

Review impact separately from score.

Published · January 22, 2019

Updated · September 21, 2026

Description

In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWE-400 · Uncontrolled Resource Consumption