Alibaba Cloud Linux 3 : 0060: mod_auth_openidc:2.3 (ALINUX3-SA-2025:0060)

high Nessus Plugin ID 236933

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2025:0060 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2025-3891:
A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allows a remote, unauthenticated attacker to trigger a denial of service by sending an empty POST request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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

Update the affected mod_auth_openidc, mod_auth_openidc-debuginfo and / or mod_auth_openidc-debugsource packages.

Plugin Details

Severity: High

ID: 236933

File Name: alinux3_sa_2025-0060.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/19/2025

Updated: 5/19/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-3891

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:mod_auth_openidc-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:mod_auth_openidc-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:mod_auth_openidc, cpe:/o:alibabacloud:alibaba_cloud_linux_3

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Alibaba/release, Host/Alibaba/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2025

Vulnerability Publication Date: 4/17/2025

Reference Information

CVE: CVE-2025-3891

Detections

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