REDHAT-BUG-2361633
First published: Tue Apr 22 2025(Updated: )
An unauthenticated attacker can crash the Apache httpd process by sending an empty POST request when OIDCPreservePost is enabled in mod_auth_openidc. This leads to denial of service.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache HTTP Server | ||
| OpenID mod_auth_openidc |
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Reference Links
Frequently Asked Questions
What is the severity of REDHAT-BUG-2361633?
The severity of REDHAT-BUG-2361633 is classified as a denial of service vulnerability.
Who is impacted by REDHAT-BUG-2361633?
Apache HTTP Server and mod_auth_openidc users with OIDCPreservePost enabled are impacted by REDHAT-BUG-2361633.
How does REDHAT-BUG-2361633 affect Apache httpd?
REDHAT-BUG-2361633 allows an unauthenticated attacker to crash the Apache httpd process by sending an empty POST request.
How do I fix REDHAT-BUG-2361633?
To fix REDHAT-BUG-2361633, disable OIDCPreservePost in the mod_auth_openidc configuration.
What actions should I take upon identifying REDHAT-BUG-2361633 on my server?
Immediately review your Apache httpd configuration and consider disabling OIDCPreservePost to mitigate the vulnerability.
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2025-3891
- agent/severity
- agent/references
- agent/last-modified-date
- agent/source
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- vendor/apache
- canonical/apache http server
- canonical/openid mod_auth_openidc