Detections
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Linux Distros Unpatched Vulnerability : CVE-2025-9784

high Nessus Plugin ID 261317

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the MadeYouReset attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS). (CVE-2025-9784)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-9784

https://ubuntu.com/security/CVE-2025-9784

Plugin Details

Severity: High

ID: 261317

File Name: unpatched_CVE_2025_9784.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 9/4/2025

Updated: 9/6/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2025-9784

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:redhat:enterprise_linux:pki-resteasy-jackson2-provider, p-cpe:/a:canonical:ubuntu_linux:resteasy, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:pki-resteasy, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-core, p-cpe:/a:redhat:enterprise_linux:moditect, p-cpe:/a:centos:centos:pki-resteasy, p-cpe:/a:centos:centos:resteasy, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-client, p-cpe:/a:centos:centos:pki-resteasy-core, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-servlet-initializer, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:centos:centos:moditect, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:resteasy, p-cpe:/a:centos:centos:pki-resteasy-jackson2-provider, p-cpe:/a:canonical:ubuntu_linux:undertow, p-cpe:/a:redhat:enterprise_linux:moditect-javadoc, p-cpe:/a:centos:centos:pki-resteasy-servlet-initializer, p-cpe:/a:centos:centos:pki-resteasy-client, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:moditect-javadoc

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2025-9784