Description
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`.
References (7)
Core 7
Core References
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/WIBKFC22PDH6UXMSZ23PHTD7736ZC7BB/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5405
Third Party Advisory x_refsource_confirm
https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qr
Patch x_refsource_misc
https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916a
Third Party Advisory x_refsource_misc
https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179
Release Notes x_refsource_misc
https://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2
Scores
CVSS v3
7.5
EPSS
0.0011
EPSS Percentile
29.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (1)
openidc/mod_auth_openidc
2.0.0 - 2.4.13.2
Published
Apr 03, 2023
Tracked Since
Feb 18, 2026