Detections
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Fedora 42 : nginx / nginx-mod-brotli / nginx-mod-fancyindex / etc (2025-8caa129b2e)

medium Nessus Plugin ID 281630

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Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 42 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2025-8caa129b2e advisory.

 Changes with nginx 1.28.1 23 Dec 2025

 *) Security: processing of a specially crafted login/password when using the none authentication method in the ngx_mail_smtp_module might cause worker process memory disclosure to the authentication server (CVE-2025-53859).

 *) Bugfix: a segmentation fault might occur in a worker process if the try_files directive and proxy_pass with a URI were used.

 *) Bugfix: in handling Host and :authority header lines with equal values when using HTTP/2; the bug had appeared in 1.17.9.

 *) Bugfix: in handling Host header lines with a port when using HTTP/3.

 *) Bugfix: an XCLIENT command didn't use the xtext encoding.
 Thanks to Igor Morgenstern of Aisle Research.

 *) Bugfix: in SSL certificate caching during reconfiguration.

 *) Bugfix: in delta-seconds processing in the Cache-Control backend response header line.

 *) Change: the native nginx/Windows binary release is now built using Windows SDK 10.

 *) Bugfix: nginx could not be built on NetBSD 10.0.

 *) Bugfix: in HTTP/3.

Tenable has extracted the preceding description block directly from the Fedora 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 packages.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2025-8caa129b2e

Plugin Details

Severity: Medium

ID: 281630

File Name: fedora_2025-8caa129b2e.nasl

Version: 1.1

Type: local

Agent: unix

Published: 1/3/2026

Updated: 1/3/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2025-53859

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:nginx-mod-fancyindex, p-cpe:/a:fedoraproject:fedora:nginx-mod-modsecurity, p-cpe:/a:fedoraproject:fedora:nginx, cpe:/o:fedoraproject:fedora:42, p-cpe:/a:fedoraproject:fedora:nginx-mod-headers-more, p-cpe:/a:fedoraproject:fedora:nginx-mod-brotli, p-cpe:/a:fedoraproject:fedora:nginx-mod-vts, p-cpe:/a:fedoraproject:fedora:nginx-mod-naxsi

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/26/2025

Vulnerability Publication Date: 8/13/2025

Reference Information

CVE: CVE-2025-53859

FEDORA: 2025-8caa129b2e

IAVA: 2025-A-0615