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CVE-2023-28625

Date: April 3, 2023

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".

Language: C

Severity Score

Related Resources (11)

https://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2
https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179
https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
https://security-tracker.debian.org/tracker/CVE-2023-28625
https://nvd.nist.gov/vuln/detail/CVE-2023-28625
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WIBKFC22PDH6UXMSZ23PHTD7736ZC7BB/
https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qr
https://access.redhat.com/security/cve/CVE-2023-28625
https://www.debian.org/security/2023/dsa-5405
https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916a
https://www.mend.io/vulnerability-database/CVE-2023-28625

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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