Detections
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Azure Linux 3.0 Security Update: fcgi (CVE-2025-23016)

critical Nessus Plugin ID 235315

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Synopsis

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

Description

The version of fcgi installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-23016 advisory.

 - FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c. (CVE-2025-23016)

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 packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2025-23016

Plugin Details

Severity: Critical

ID: 235315

File Name: azure_linux_CVE-2025-23016.nasl

Version: 1.1

Type: local

Published: 5/6/2025

Updated: 5/6/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-23016

CVSS v3

Risk Factor: Critical

Base Score: 9.3

Temporal Score: 8.1

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:fcgi-devel, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:fcgi-debuginfo, p-cpe:/a:microsoft:azure_linux:fcgi

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2025

Vulnerability Publication Date: 1/10/2025

Reference Information

CVE: CVE-2025-23016