CVE-2023-28625
published 2023-04-03CVE-2023-28625: mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality…
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.33%
67.8th percentile
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`.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libapache2-mod-auth-openidc | < libapache2-mod-auth-openidc 2.4.12.3-2 (bookworm) | libapache2-mod-auth-openidc 2.4.12.3-2 (bookworm) |
| msrc | cbl2_mod_auth_openidc_2.4.14.2-1_on_cbl_mariner_2.0 | — | — |
| openidc | mod_auth_openidc | — | — |
| openidc | mod_auth_openidc | >= 2.0.0 < 2.4.13.2 | 2.4.13.2 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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OSV
CVE-2023-28625: mod_auth_openidc is an authentication and authorization module for the Apache 2
osv·2023-04-03·CVSS 7.5
CVE-2023-28625 [HIGH] CVE-2023-28625: mod_auth_openidc is an authentication and authorization module for the Apache 2
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`.
Microsoft
mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied
vendor_msrc·2023-04-11·CVSS 7.5
CVE-2023-28625 [HIGH] CWE-476 mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied
mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: C
Red Hat
mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied
vendor_redhat·2023-04-03·CVSS 7.5
CVE-2023-28625 [HIGH] CWE-476 mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied
mod_auth_openidc: NULL pointer dereference when OIDCStripCookies is set and a crafted Cookie header is supplied
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`.
A flaw was found in mod_auth_openidc, an OpenID Certified™ authentication and authorization module for the Apache HTTP server. It is possible to trigger a NULL pointer
Debian
CVE-2023-28625: libapache2-mod-auth-openidc - mod_auth_openidc is an authentication and authorization module for the Apache 2....
vendor_debian·2023·CVSS 7.5
CVE-2023-28625 [HIGH] CVE-2023-28625: libapache2-mod-auth-openidc - mod_auth_openidc is an authentication and authorization module for the Apache 2....
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`.
Scope: local
bookworm: resolved (fixed in 2.4.12.3-2)
bullseye: resolved (fixed in 2.4.9.4-0+deb11u3)
forky: resolved (fixed in 2.4.12.3-2)
sid: resolved (fixed in 2.4.12.3-2)
trixie: resolved (fixed in 2.4.12.3-2)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916ahttps://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qrhttps://lists.debian.org/debian-lts-announce/2023/04/msg00034.htmlhttps://lists.fedoraproject.org/archives/list/[email protected]/message/WIBKFC22PDH6UXMSZ23PHTD7736ZC7BB/https://www.debian.org/security/2023/dsa-5405https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916ahttps://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qrhttps://lists.debian.org/debian-lts-announce/2023/04/msg00034.htmlhttps://lists.fedoraproject.org/archives/list/[email protected]/message/WIBKFC22PDH6UXMSZ23PHTD7736ZC7BB/https://www.debian.org/security/2023/dsa-5405
2023-04-03
Published