UBUNTU-CVE-2021-39191

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Source
https://ubuntu.com/security/CVE-2021-39191
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39191.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-39191
Related
Published
2021-09-03T14:15:00Z
Modified
2025-04-14T16:44:32Z
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

Ubuntu:Pro:18.04:LTS / libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.3.3-1build1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.1.6-1
2.3.1-2
2.3.2-1
2.3.2-1build1
2.3.3-1build1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.4.1-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.10.2-1
2.4.0.4-1
2.4.1-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / libapache2-mod-auth-openidc

Package

Name
libapache2-mod-auth-openidc
Purl
pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.4.9.4-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*

2.4.9-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.4.9.4-1",
            "binary_name": "libapache2-mod-auth-openidc"
        },
        {
            "binary_version": "2.4.9.4-1",
            "binary_name": "libapache2-mod-auth-openidc-dbgsym"
        }
    ]
}