GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

OESA-2025-1632 (CVE-2025-4476)

Vulnerability from osv_openeuler – Published: 2025-06-13 11:08 – Updated: 2026-08-06 11:08 – Source website
VLAI
Summary
libsoup security update
Details

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.

Security Fix(es):

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 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)

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)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libsoup-2.74.3-10.oe2403.aarch64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403.aarch64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403.aarch64.rpm",
          "libsoup-devel-2.74.3-10.oe2403.aarch64.rpm",
          "libsoup-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-devel-2.74.3-10.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "libsoup-help-2.74.3-10.oe2403.noarch.rpm",
          "libsoup-help-2.74.3-10.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "libsoup-2.74.3-10.oe2403.src.rpm",
          "libsoup-2.74.3-10.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "libsoup-2.74.3-10.oe2403.x86_64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403.x86_64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403.x86_64.rpm",
          "libsoup-devel-2.74.3-10.oe2403.x86_64.rpm",
          "libsoup-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-devel-2.74.3-10.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "libsoup",
        "purl": "pkg:rpm/openEuler/libsoup\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.74.3-10.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "libsoup-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403sp1.aarch64.rpm",
          "libsoup-devel-2.74.3-10.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "libsoup-help-2.74.3-10.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "libsoup-2.74.3-10.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "libsoup-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-debuginfo-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-debugsource-2.74.3-10.oe2403sp1.x86_64.rpm",
          "libsoup-devel-2.74.3-10.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "libsoup",
        "purl": "pkg:rpm/openEuler/libsoup\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.74.3-10.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "libsoup-2.71.0-9.oe2003sp4.aarch64.rpm",
          "libsoup-debuginfo-2.71.0-9.oe2003sp4.aarch64.rpm",
          "libsoup-debugsource-2.71.0-9.oe2003sp4.aarch64.rpm",
          "libsoup-devel-2.71.0-9.oe2003sp4.aarch64.rpm"
        ],
        "noarch": [
          "libsoup-help-2.71.0-9.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "libsoup-2.71.0-9.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "libsoup-2.71.0-9.oe2003sp4.x86_64.rpm",
          "libsoup-debuginfo-2.71.0-9.oe2003sp4.x86_64.rpm",
          "libsoup-debugsource-2.71.0-9.oe2003sp4.x86_64.rpm",
          "libsoup-devel-2.71.0-9.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "libsoup",
        "purl": "pkg:rpm/openEuler/libsoup\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.71.0-9.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "libsoup-2.74.2-10.oe2203sp3.aarch64.rpm",
          "libsoup-debuginfo-2.74.2-10.oe2203sp3.aarch64.rpm",
          "libsoup-debugsource-2.74.2-10.oe2203sp3.aarch64.rpm",
          "libsoup-devel-2.74.2-10.oe2203sp3.aarch64.rpm"
        ],
        "noarch": [
          "libsoup-help-2.74.2-10.oe2203sp3.noarch.rpm"
        ],
        "src": [
          "libsoup-2.74.2-10.oe2203sp3.src.rpm"
        ],
        "x86_64": [
          "libsoup-2.74.2-10.oe2203sp3.x86_64.rpm",
          "libsoup-debuginfo-2.74.2-10.oe2203sp3.x86_64.rpm",
          "libsoup-debugsource-2.74.2-10.oe2203sp3.x86_64.rpm",
          "libsoup-devel-2.74.2-10.oe2203sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP3",
        "name": "libsoup",
        "purl": "pkg:rpm/openEuler/libsoup\u0026distro=openEuler-22.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.74.2-10.oe2203sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "libsoup-2.74.2-10.oe2203sp4.aarch64.rpm",
          "libsoup-debuginfo-2.74.2-10.oe2203sp4.aarch64.rpm",
          "libsoup-debugsource-2.74.2-10.oe2203sp4.aarch64.rpm",
          "libsoup-devel-2.74.2-10.oe2203sp4.aarch64.rpm"
        ],
        "noarch": [
          "libsoup-help-2.74.2-10.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "libsoup-2.74.2-10.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "libsoup-2.74.2-10.oe2203sp4.x86_64.rpm",
          "libsoup-debuginfo-2.74.2-10.oe2203sp4.x86_64.rpm",
          "libsoup-debugsource-2.74.2-10.oe2203sp4.x86_64.rpm",
          "libsoup-devel-2.74.2-10.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "libsoup",
        "purl": "pkg:rpm/openEuler/libsoup\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.74.2-10.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA 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\u0026apos;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\u0026apos;s client application into connecting to the attacker\u0026apos;s malicious server.(CVE-2025-4476)\n\nA 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)\n\nA 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)",
  "id": "OESA-2025-1632",
  "modified": "2026-08-06T11:08:43Z",
  "published": "2025-06-13T11:08:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1632"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4476"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4948"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4969"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libsoup security update",
  "upstream": [
    "CVE-2025-4476",
    "CVE-2025-4948",
    "CVE-2025-4969"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.