Detections
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CBL Mariner 2.0 Security Update: libsoup (CVE-2025-4948)

high Nessus Plugin ID 249266

Synopsis

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

Description

The version of libsoup 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-2025-4948 advisory.

 - A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk. (CVE-2025-4948)

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-2025-4948

Plugin Details

Severity: High

ID: 249266

File Name: mariner_CVE-2025-4948.nasl

Version: 1.1

Type: local

Published: 8/14/2025

Updated: 8/14/2025

Supported Sensors: 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-2025-4948

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:microsoft:cbl-mariner:libsoup-lang, p-cpe:/a:microsoft:cbl-mariner:libsoup-debuginfo, p-cpe:/a:microsoft:cbl-mariner:libsoup-devel, p-cpe:/a:microsoft:cbl-mariner:libsoup, p-cpe:/a:microsoft:cbl-mariner:libsoup-doc, x-cpe:/o:microsoft:cbl-mariner

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: 8/12/2025

Vulnerability Publication Date: 5/19/2025

Reference Information

CVE: CVE-2025-4948