NULL Pointer Dereference Affecting mod_auth_openidc:2.3/mod_auth_openidc package, versions <0:2.4.9.4-5.module_el8.9.0+3631+0ced13d7


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.37% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-MODAUTHOPENIDC-6090989
  • published27 Nov 2023
  • disclosed7 Nov 2023

Introduced: 7 Nov 2023

CVE-2023-28625  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 mod_auth_openidc:2.3/mod_auth_openidc to version 0:2.4.9.4-5.module_el8.9.0+3631+0ced13d7 or higher.
This issue was patched in ALSA-2023:6940.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_auth_openidc:2.3/mod_auth_openidc package and not the mod_auth_openidc:2.3/mod_auth_openidc package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1