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ALSA-2023:6365 — Moderate: mod_auth_openidc security and bug fix update

Affected: AlmaLinux:9: mod_auth_openidc

The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.

Security Fix(es):

* mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character (CVE-2022-23527) * mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied (CVE-2023-28625)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

EUVD-2026-231813

fkie_cve-2022-23527

mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.

gsd-2022-23527

msrc_CVE-2022-23527 — Open Redirect in oidc_validate_redirect_url()

msrc_CVE-2022-23527

OESA-2023-1235 — mod_auth_openidc security update

Affected: openEuler:22.03-LTS: mod_auth_openidc

This module enables an Apache 2.x web server to operate as an OpenID Connect Relying Party(RP) to an OpenID Connect Provider(OP). Security Fix(es): mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.(CVE-2022-23527) mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when `OIDCStripCookies` is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using `OIDCStripCookies`.(CVE-2023-28625)

openSUSE-SU-2024:12584-1 — apache2-mod_auth_openidc-2.4.12.2-1.1 on GA media

apache2-mod_auth_openidc-2.4.12.2-1.1 on GA media

SUSE-SU-2023:1837-1 — Security update for apache2-mod_auth_openidc

Security update for apache2-mod_auth_openidc

UBUNTU-CVE-2022-23527

Affected: Ubuntu:18.04:LTS: libapache2-mod-auth-openidc, Ubuntu:20.04:LTS: libapache2-mod-auth-openidc, Ubuntu:22.04:LTS: libapache2-mod-auth-openidc

WID-SEC-W-2023-2853 — Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, seine Privilegien zu erweitern, vertrauliche Informationen offenzulegen oder beliebigen Code auszuführen.