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Apache2: 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…

0
Unknown
Vulnerabilitygcveosvubuntu-cve-2019-17567ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-lts
Published: 06/10/2021 (06/10/2021, 07:15:00 UTC)
Source: GCVE Database
Product: apache2

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 v3.1

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm15?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=2.4.6-2ubuntu2=2.4.6-2ubuntu3=2.4.6-2ubuntu4=2.4.7-1ubuntu1=2.4.7-1ubuntu2=2.4.7-1ubuntu3=2.4.7-1ubuntu4=2.4.7-1ubuntu4.1=2.4.7-1ubuntu4.4=2.4.7-1ubuntu4.5=2.4.7-1ubuntu4.6=2.4.7-1ubuntu4.7=2.4.7-1ubuntu4.8=2.4.7-1ubuntu4.9=2.4.7-1ubuntu4.10=2.4.7-1ubuntu4.11=2.4.7-1ubuntu4.13=2.4.7-1ubuntu4.15=2.4.7-1ubuntu4.16=2.4.7-1ubuntu4.17=2.4.7-1ubuntu4.18=2.4.7-1ubuntu4.19=2.4.7-1ubuntu4.20=2.4.7-1ubuntu4.21=2.4.7-1ubuntu4.22=2.4.7-1ubuntu4.22+esm1=2.4.7-1ubuntu4.22+esm2=2.4.7-1ubuntu4.22+esm3=2.4.7-1ubuntu4.22+esm4=2.4.7-1ubuntu4.22+esm5=2.4.7-1ubuntu4.22+esm6=2.4.7-1ubuntu4.22+esm8=2.4.7-1ubuntu4.22+esm9=2.4.7-1ubuntu4.22+esm10=2.4.7-1ubuntu4.22+esm12=2.4.7-1ubuntu4.22+esm13=2.4.7-1ubuntu4.22+esm14=2.4.7-1ubuntu4.22+esm15
Ubuntu:Pro:16.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm20?arch=source&distro=esm-infra-legacy/xenial
Affected versions
=2.4.12-2ubuntu2=2.4.17-1ubuntu1=2.4.17-2ubuntu1=2.4.17-3ubuntu1=2.4.18-1ubuntu1=2.4.18-2ubuntu1=2.4.18-2ubuntu2=2.4.18-2ubuntu3=2.4.18-2ubuntu3.1=2.4.18-2ubuntu3.2=2.4.18-2ubuntu3.3=2.4.18-2ubuntu3.4=2.4.18-2ubuntu3.5=2.4.18-2ubuntu3.7=2.4.18-2ubuntu3.8=2.4.18-2ubuntu3.9=2.4.18-2ubuntu3.10=2.4.18-2ubuntu3.12=2.4.18-2ubuntu3.13=2.4.18-2ubuntu3.14=2.4.18-2ubuntu3.15=2.4.18-2ubuntu3.17=2.4.18-2ubuntu3.17+esm1=2.4.18-2ubuntu3.17+esm2=2.4.18-2ubuntu3.17+esm3=2.4.18-2ubuntu3.17+esm4=2.4.18-2ubuntu3.17+esm5=2.4.18-2ubuntu3.17+esm6=2.4.18-2ubuntu3.17+esm7=2.4.18-2ubuntu3.17+esm8=2.4.18-2ubuntu3.17+esm9=2.4.18-2ubuntu3.17+esm10=2.4.18-2ubuntu3.17+esm11=2.4.18-2ubuntu3.17+esm12=2.4.18-2ubuntu3.17+esm13=2.4.18-2ubuntu3.17+esm14=2.4.18-2ubuntu3.17+esm16=2.4.18-2ubuntu3.17+esm17=2.4.18-2ubuntu3.17+esm18=2.4.18-2ubuntu3.17+esm19=2.4.18-2ubuntu3.17+esm20
Ubuntu:Pro:18.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm11?arch=source&distro=esm-infra/bionic
Affected versions
=2.4.27-2ubuntu3=2.4.29-1ubuntu1=2.4.29-1ubuntu2=2.4.29-1ubuntu3=2.4.29-1ubuntu4=2.4.29-1ubuntu4.1=2.4.29-1ubuntu4.2=2.4.29-1ubuntu4.3=2.4.29-1ubuntu4.4=2.4.29-1ubuntu4.5=2.4.29-1ubuntu4.6=2.4.29-1ubuntu4.7=2.4.29-1ubuntu4.8=2.4.29-1ubuntu4.10=2.4.29-1ubuntu4.11=2.4.29-1ubuntu4.12=2.4.29-1ubuntu4.13=2.4.29-1ubuntu4.14=2.4.29-1ubuntu4.16=2.4.29-1ubuntu4.17=2.4.29-1ubuntu4.18=2.4.29-1ubuntu4.19=2.4.29-1ubuntu4.20=2.4.29-1ubuntu4.21=2.4.29-1ubuntu4.22=2.4.29-1ubuntu4.23=2.4.29-1ubuntu4.24=2.4.29-1ubuntu4.25=2.4.29-1ubuntu4.26=2.4.29-1ubuntu4.27=2.4.29-1ubuntu4.27+esm1=2.4.29-1ubuntu4.27+esm2=2.4.29-1ubuntu4.27+esm3=2.4.29-1ubuntu4.27+esm4=2.4.29-1ubuntu4.27+esm6=2.4.29-1ubuntu4.27+esm7=2.4.29-1ubuntu4.27+esm8=2.4.29-1ubuntu4.27+esm9=2.4.29-1ubuntu4.27+esm10=2.4.29-1ubuntu4.27+esm11
Ubuntu:Pro:20.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm6?arch=source&distro=esm-infra/focal
Affected versions
=2.4.41-1ubuntu1=2.4.41-4ubuntu1=2.4.41-4ubuntu2=2.4.41-4ubuntu3=2.4.41-4ubuntu3.1=2.4.41-4ubuntu3.3=2.4.41-4ubuntu3.4=2.4.41-4ubuntu3.5=2.4.41-4ubuntu3.6=2.4.41-4ubuntu3.7=2.4.41-4ubuntu3.8=2.4.41-4ubuntu3.9=2.4.41-4ubuntu3.10=2.4.41-4ubuntu3.11=2.4.41-4ubuntu3.12=2.4.41-4ubuntu3.13=2.4.41-4ubuntu3.14=2.4.41-4ubuntu3.15=2.4.41-4ubuntu3.16=2.4.41-4ubuntu3.17=2.4.41-4ubuntu3.19=2.4.41-4ubuntu3.20=2.4.41-4ubuntu3.21=2.4.41-4ubuntu3.23=2.4.41-4ubuntu3.23+esm2=2.4.41-4ubuntu3.23+esm3=2.4.41-4ubuntu3.23+esm4=2.4.41-4ubuntu3.23+esm5=2.4.41-4ubuntu3.23+esm6

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2019-17567
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a61512c9c2644c7f8da70b9

Added to database: 07/22/2026, 23:24:28 UTC

Last updated: 07/27/2026, 12:37:26 UTC

Views: 24

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