UpHeron
All vulnerabilities

Servers and applications

CVE-2018-17189

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.

Severity
Medium 5.3
Published
30 Jan 2019
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 2.4.37
  • Version 2.4.35
  • Version 2.4.34
  • Version 2.4.33
All 14 release lines
  • Version 2.4.17
  • Version 2.4.18
  • Version 2.4.20
  • Version 2.4.23
  • Version 2.4.25
  • Version 2.4.26
  • Version 2.4.27
  • Version 2.4.28
  • Version 2.4.29
  • Version 2.4.30
  • Version 2.4.33
  • Version 2.4.34
  • Version 2.4.35
  • Version 2.4.37

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-17189
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-17189