The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4398 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4398-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Andreas Henriksson     December 09, 2025                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libsoup2.4     Version        : 2.72.0-2+deb11u3     CVE ID         : CVE-2025-4476 CVE-2025-4945 CVE-2025-4948 CVE-2025-4969     Debian Bug     : 1106325 1106337 1106375 1107757

    libsoup is an HTTP client/server library for GNOME. It uses GObjects and the     glib main loop, to integrate well with GNOME applications.

    CVE-2025-4476

        A denial-of-service vulnerability has been identified in the libsoup         HTTP client library. This flaw can be triggered when a libsoup client         receives a 401 (Unauthorized) HTTP response containing a specifically         crafted domain parameter within the WWW-Authenticate header. Processing         this malformed header can lead to a crash of the client application         using libsoup. An attacker could exploit this by setting up a malicious         HTTP server. If a user's application using the vulnerable libsoup         library connects to this malicious server, it could result in a         denial-of-service. Successful exploitation requires tricking a user's         client application into connecting to the attacker's malicious server.

    CVE-2025-4945

        A flaw was found in the cookie parsing logic of the libsoup HTTP         library, used in GNOME applications and other software. The         vulnerability arises when processing the expiration date of cookies,         where a specially crafted value can trigger an integer overflow. This         may result in undefined behavior, allowing an attacker to bypass cookie         expiration logic, causing persistent or unintended cookie behavior. The         issue stems from improper validation of large integer inputs during date         arithmetic operations within the cookie parsing routines.

    CVE-2025-4948

        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-2025-4969

        A vulnerability was found in the libsoup package. This flaw stems from         its failure to correctly verify the termination of multipart HTTP         messages. This can allow a remote attacker to send a specially crafted         multipart HTTP body, causing the libsoup-consuming server to read beyond         its allocated memory boundaries (out-of-bounds read).

    For Debian 11 bullseye, these problems have been fixed in version     2.72.0-2+deb11u3.

    We recommend that you upgrade your libsoup2.4 packages.

    For the detailed security status of libsoup2.4 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libsoup2.4

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-3b89fef0f9 advisory.

    Backport fixes for CVE-2025-4476, CVE-2025-4948, CVE-2025-4969, CVE-2025-46420, CVE-2025-46421,     CVE-2025-4945

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01817-1 advisory.

    - CVE-2025-4969: Fixed off-by-one out-of-bounds read may lead to infoleak (bsc#1243423)
    - CVE-2025-4948: Fixed integer underflow in soup_multipart_new_from_message() leading to denial of service     (bsc#1243332)
    - CVE-2025-4476: Fixed NULL pointer dereference may lead to denial of service (bsc#1243422)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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-2025-4476 advisory.

  - A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be     triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically     crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to     a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious     HTTP server. If a user's application using the vulnerable libsoup library connects to this malicious     server, it could result in a denial-of-service. Successful exploitation requires tricking a user's client     application into connecting to the attacker's malicious server. (CVE-2025-4476)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-1f41505af2 advisory.

    This update fixes these CVEs:
      CVE-2025-4948       CVE-2025-32908       CVE-2025-32907       CVE-2025-4969       CVE-2025-4945       CVE-2025-4476


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the libsoup packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be     triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically     crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to     a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious     HTTP server. If a user's application using the vulnerable libsoup library connects to this malicious     server, it could result in a denial-of-service. Successful exploitation requires tricking a user's client     application into connecting to the attacker's malicious server.(CVE-2025-4476)

Tenable has extracted the preceding description block directly from the EulerOS libsoup security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1233 advisory.

    A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be     triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically     crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to     a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious     HTTP server. If a user's application using the vulnerable libsoup library connects to this malicious     server, it could result in a denial-of-service. Successful exploitation requires tricking a user's client     application into connecting to the attacker's malicious server. (CVE-2025-4476)

    A vulnerability was found in the libsoup package. This flaw stems from its failure to correctly verify the     termination of multipart HTTP messages. This can allow a remote attacker to send a specially crafted     multipart HTTP body, causing the libsoup-consuming server to read beyond its allocated memory boundaries     (out-of-bounds read). (CVE-2025-4969)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
277945	Debian dla-4398 : gir1.2-soup-2.4 - security update	Nessus	Debian Local Security Checks	12/9/2025	12/9/2025	medium
237939	Fedora 41 : mingw-libsoup (2025-3b89fef0f9)	Nessus	Fedora Local Security Checks	6/8/2025	2/24/2026	medium
237888	SUSE SLES15 Security Update : libsoup (SUSE-SU-2025:01817-1)	Nessus	SuSE Local Security Checks	6/6/2025	2/24/2026	medium
241911	CBL Mariner 2.0 Security Update: libsoup (CVE-2025-4476)	Nessus	MarinerOS Local Security Checks	7/11/2025	2/24/2026	medium
244369	Fedora 41 : libsoup3 (2025-1f41505af2)	Nessus	Fedora Local Security Checks	8/6/2025	2/24/2026	medium
261890	EulerOS 2.0 SP12 : libsoup (EulerOS-SA-2025-2015)	Nessus	Huawei Local Security Checks	9/10/2025	2/24/2026	medium
264859	EulerOS 2.0 SP13 : libsoup (EulerOS-SA-2025-2136)	Nessus	Huawei Local Security Checks	9/16/2025	2/24/2026	medium
271780	Amazon Linux 2023 : libsoup3, libsoup3-devel (ALAS2023-2025-1233)	Nessus	Amazon Linux Local Security Checks	10/28/2025	2/24/2026	medium

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