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CBL Mariner 2.0 Security Update: nbdkit (CVE-2025-47711)

medium Nessus Plugin ID 241910

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of nbdkit installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-47711 advisory.

 - There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If a client makes a specific request for a very large data range, and a plugin responds with an even larger single block, the nbdkit server can encounter a critical internal error, leading to a denial- of-service. (CVE-2025-47711)

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://nvd.nist.gov/vuln/detail/CVE-2025-47711

Plugin Details

Severity: Medium

ID: 241910

File Name: mariner_CVE-2025-47711.nasl

Version: 1.1

Type: local

Published: 7/11/2025

Updated: 7/11/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-47711

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:nbdkit-perl-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-linuxdisk-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-ssh-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-example-plugins, p-cpe:/a:microsoft:cbl-mariner:nbdkit-xz-filter, p-cpe:/a:microsoft:cbl-mariner:nbdkit-iso-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-devel, p-cpe:/a:microsoft:cbl-mariner:nbdkit-gzip-filter, p-cpe:/a:microsoft:cbl-mariner:nbdkit-tar-filter, p-cpe:/a:microsoft:cbl-mariner:nbdkit-cc-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-python-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-libvirt-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-debuginfo, p-cpe:/a:microsoft:cbl-mariner:nbdkit-basic-plugins, p-cpe:/a:microsoft:cbl-mariner:nbdkit-ext2-filter, p-cpe:/a:microsoft:cbl-mariner:nbdkit-tmpdisk-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit, p-cpe:/a:microsoft:cbl-mariner:nbdkit-bash-completion, p-cpe:/a:microsoft:cbl-mariner:nbdkit-lua-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-tcl-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-curl-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-server, p-cpe:/a:microsoft:cbl-mariner:nbdkit-stats-filter, p-cpe:/a:microsoft:cbl-mariner:nbdkit-vddk-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-nbd-plugin, p-cpe:/a:microsoft:cbl-mariner:nbdkit-basic-filters

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/8/2025

Vulnerability Publication Date: 5/10/2025

Reference Information

CVE: CVE-2025-47711