DEBIAN-CVE-2021-39191

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Source
https://security-tracker.debian.org/tracker/CVE-2021-39191
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-39191.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-39191
Upstream
Published
2021-09-03T14:15:07Z
Modified
2025-09-25T23:23:28.377849Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

modauthopenidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9.4, the 3rd-party init SSO functionality of modauthopenidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the target_link_uri parameter. A patch in version 2.4.9.4 made it so that the OIDCRedirectURLsAllowed setting must be applied to the target_link_uri parameter. There are no known workarounds aside from upgrading to a patched version.

References

Affected packages

Debian:11

libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/debian/libapache2-mod-auth-openidc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.9.4-0+deb11u1

Affected versions

2.*

2.4.9-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12

libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/debian/libapache2-mod-auth-openidc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.9.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13

libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/debian/libapache2-mod-auth-openidc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.9.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14

libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/debian/libapache2-mod-auth-openidc?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.9.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}