Detections
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Azure Linux 3.0 Security Update: libsoup (CVE-2025-46421)

medium Nessus Plugin ID 235435

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Synopsis

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

Description

The version of libsoup 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-2025-46421 advisory.

 - A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect. (CVE-2025-46421)

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-2025-46421

Plugin Details

Severity: Medium

ID: 235435

File Name: azure_linux_CVE-2025-46421.nasl

Version: 1.1

Type: local

Published: 5/7/2025

Updated: 5/7/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-46421

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:libsoup-debuginfo, p-cpe:/a:microsoft:azure_linux:libsoup-doc, p-cpe:/a:microsoft:azure_linux:libsoup-lang, p-cpe:/a:microsoft:azure_linux:libsoup, p-cpe:/a:microsoft:azure_linux:libsoup-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2025

Vulnerability Publication Date: 4/24/2025

Reference Information

CVE: CVE-2025-46421