Debian dsa-5917 : libapache2-mod-auth-openidc - security update

medium Nessus Plugin ID 235620

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 12 host has a package installed that is affected by a vulnerability as referenced in the dsa-5917 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-5917-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 08, 2025 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

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: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libapache2-mod-auth-openidc packages.

Plugin Details

Severity: Medium

ID: 235620

File Name: debian_DSA-5917.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/9/2025

Updated: 5/9/2025

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2025-3891

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:libapache2-mod-auth-openidc

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2025

Vulnerability Publication Date: 4/17/2025

Reference Information

CVE: CVE-2025-3891

Detections

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