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`.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade cjose-develUpgrade mod_auth_openidcUpgrade cjose | Nov 16, 2023 | Apr 3, 2023 |
| Centos_linux | — | Upgrade cjose-develUpgrade mod_auth_openidc-debugsourceUpgrade mod_auth_openidc-debuginfoUpgrade mod_auth_openidcUpgrade cjose-debugsourceUpgrade cjoseUpgrade cjose-debuginfo | Nov 8, 2023 | Apr 3, 2023 |
| Debian | — | Upgrade libapache2-mod-auth-openidc | May 2, 2023 | Apr 3, 2023 |
| Oracle_linux | — | Upgrade cjoseUpgrade cjose-develUpgrade mod_auth_openidc | Nov 22, 2023 | Apr 3, 2023 |
| Redhat_linux | — | Upgrade cjose-develUpgrade mod_auth_openidc-debuginfoUpgrade mod_auth_openidcUpgrade mod_auth_openidc-debugsourceUpgrade cjose-debuginfoUpgrade cjoseUpgrade cjose-debugsource | Nov 8, 2023 | Apr 3, 2023 |
| Suse | — | Upgrade apache2-mod_auth_openidc | Apr 14, 2023 | Apr 3, 2023 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 3, 2023 |
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