{"id":"AZL-42520","summary":"CVE-2024-24814 affecting package mod_auth_openidc 2.4.14.2-1","details":"mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In affected versions missing input validation on mod_auth_openidc_session_chunks cookie value makes the server vulnerable to a denial of service (DoS) attack. An internal security audit has been conducted and the reviewers found that if they manipulated the value of the mod_auth_openidc_session_chunks cookie to a very large integer, like 99999999, the server struggles with the request for a long time and finally gets back with a 500 error. Making a few requests of this kind caused our server to become unresponsive. Attackers can craft requests that would make the server work very hard (and possibly become unresponsive) and/or crash with minimal effort. This issue has been addressed in version 2.4.15.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.","modified":"2026-04-21T04:29:36.570868Z","published":"2024-02-13T19:15:11Z","upstream":["CVE-2024-24814"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-24814"}],"affected":[{"package":{"name":"mod_auth_openidc","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/mod_auth_openidc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.4.14.2-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-42520.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}