UBUNTU-CVE-2019-17567

Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 10 Jun 2021, 07:15
Last modified:29 May 2026, 12:00

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Jun 2021, 07:15
Published
Vulnerability first disclosed
29 May 2026, 12:00
Last Modified
Vulnerability information updated

Description

Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.

CVSS Metrics

  • v3.1MEDIUMScore: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Systems

  • ubuntuapache2

    all

References (5)