Detections
Analytics

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2025-65637)

high Nessus Plugin ID 295009

Synopsis

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

Description

The version of CBL-Mariner Releases 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-2025-65637 advisory.

 - A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with token too long and the writer pipe is closed, leaving Writer() unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2.
 The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to function even if an error is logged. (CVE-2025-65637)

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.

Plugin Details

Severity: High

ID: 295009

File Name: azure_linux_CVE-2025-65637.nasl

Version: 1.1

Type: local

Published: 1/22/2026

Updated: 1/22/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2025-65637

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:cni-plugins, p-cpe:/a:microsoft:azure_linux:kubevirt, p-cpe:/a:microsoft:azure_linux:containerized-data-importer, p-cpe:/a:microsoft:azure_linux:cri-o, p-cpe:/a:microsoft:azure_linux:local-path-provisioner, p-cpe:/a:microsoft:azure_linux:dcos-cli, p-cpe:/a:microsoft:azure_linux:jx, p-cpe:/a:microsoft:azure_linux:cert-manager, p-cpe:/a:microsoft:azure_linux:influxdb, p-cpe:/a:microsoft:azure_linux:kubernetes, p-cpe:/a:microsoft:azure_linux:kube-vip-cloud-provider, p-cpe:/a:microsoft:azure_linux:cf-cli, p-cpe:/a:microsoft:azure_linux:moby-compose, p-cpe:/a:microsoft:azure_linux:prometheus, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:flannel, p-cpe:/a:microsoft:azure_linux:moby-buildx

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/9/2025

Vulnerability Publication Date: 12/4/2025

Reference Information

CVE: CVE-2025-65637