CVE-2024-24814 Affecting apache2-mod_auth_openidc package, versions <2.3.8-150100.3.28.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-SLES152-APACHE2MODAUTHOPENIDC-6394478
  • published6 Mar 2024
  • disclosed5 Mar 2024

Introduced: 5 Mar 2024

CVE-2024-24814  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 apache2-mod_auth_openidc to version 2.3.8-150100.3.28.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2-mod_auth_openidc package and not the apache2-mod_auth_openidc package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1