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Debian Security Advisory DSA-5917-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
May 08, 2025                          https://www.debian.org/security/faq
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Package        : libapache2-mod-auth-openidc
CVE ID         : CVE-2025-3891

A vulnerability has been discovered in mod_auth_openidc, an OpenID
Certified authentication and authorization module for the Apache HTTP
server that implements the OpenID Connect Relying Party functionality:

An unauthenticated attacker could crash the Apache httpd process by
sending a POST request without a Content-Type header if the 
'OIDCPreservePost' directive is enabled, resulting in denial of
service.

For the stable distribution (bookworm), this problem has been fixed in
version 2.4.12.3-2+deb12u4.

We recommend that you upgrade your libapache2-mod-auth-openidc packages.

For the detailed security status of libapache2-mod-auth-openidc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libapache2-mod-auth-openidc

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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