Detections
Analytics

Fedora 42 : brotli / perl-Alien-Brotli (2025-9e233a4e22)

high Nessus Plugin ID 279043

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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 multiple vulnerabilities as referenced in the FEDORA-2025-9e233a4e22 advisory.

 Update `brotli` to [1.2.0](https://github.com/google/brotli/blob/v1.2.0/CHANGELOG.md).

 This update provides the necessary Python APIs in `python3-brotli` to fix denial-of-service security issues related to decompression bombs, such as CVE-2025-66471 or CVE-2025-6176, but actually fixing them would require separate updates in affected packages.

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

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

Solution

Update the affected brotli and / or perl-Alien-Brotli packages.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2025-9e233a4e22

Plugin Details

Severity: High

ID: 279043

File Name: fedora_2025-9e233a4e22.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/18/2025

Updated: 12/18/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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-2025-66471

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

CVSS v4

Risk Factor: High

Base Score: 8.9

Threat Score: 6.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:brotli, cpe:/o:fedoraproject:fedora:42, p-cpe:/a:fedoraproject:fedora:perl-alien-brotli

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2025

Vulnerability Publication Date: 10/31/2025

Reference Information

CVE: CVE-2025-6176, CVE-2025-66471

FEDORA: 2025-9e233a4e22

IAVA: 2025-A-0813