Detections
Analytics
Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-39834)
critical Nessus Plugin ID 317706
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-2026-39834 advisory.- When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation. (CVE-2026-39834)
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: Critical
ID: 317706
File Name: azure_linux_CVE-2026-39834.nasl
Version: 1.1
Type: Local
Published: 5/29/2026
Updated: 5/29/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:C
CVSS Score Source: CVE-2026-39834
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:microsoft:azure_linux:gh, p-cpe:/a:microsoft:azure_linux:cf-cli, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:docker-compose, p-cpe:/a:microsoft:azure_linux:telegraf, p-cpe:/a:microsoft:azure_linux:docker-buildx, p-cpe:/a:microsoft:azure_linux:nvidia-container-toolkit
Required KB Items: Host/local_checks_enabled, Host/AzureLinux/release, Host/AzureLinux/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 5/12/2026
Vulnerability Publication Date: 5/12/2026
Reference Information
CVE: CVE-2026-39834