{"id":"UBUNTU-CVE-2023-28625","details":"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`.","modified":"2025-10-24T05:01:54Z","published":"2023-04-03T14:15:00Z","upstream":["CVE-2023-28625"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-28625"},{"type":"REPORT","url":"https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916a"},{"type":"REPORT","url":"https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qr"},{"type":"REPORT","url":"https://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2"},{"type":"REPORT","url":"https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-28625"}],"affected":[{"package":{"name":"libapache2-mod-auth-openidc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.3.3-1build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.6-1","2.3.1-2","2.3.2-1","2.3.2-1build1","2.3.3-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-auth-openidc","binary_version":"2.3.3-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-28625.json"}},{"package":{"name":"libapache2-mod-auth-openidc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.4.1-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.10.2-1","2.4.0.4-1","2.4.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-auth-openidc","binary_version":"2.4.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-28625.json"}},{"package":{"name":"libapache2-mod-auth-openidc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libapache2-mod-auth-openidc@2.4.11-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.9-1","2.4.9.4-1","2.4.10-1","2.4.10-1build1","2.4.11-1","2.4.11-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-auth-openidc","binary_version":"2.4.11-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-28625.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}