cve-2025-4476
Vulnerability from cvelistv5
Published
2025-05-16 17:56
Modified
2025-05-30 07:13
Severity ?
EPSS score ?
Summary
Libsoup: null pointer dereference in libsoup may lead to denial of service
References
Impacted products
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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\u0027s 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\u0027s client application into connecting to the attacker\u0027s malicious server." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Low" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-476", "description": "NULL Pointer Dereference", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2025-05-30T07:13:43.442Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat" }, "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2025-4476" }, { "name": "RHBZ#2366513", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2366513" } ], "timeline": [ { "lang": "en", "time": "2025-05-15T14:21:35.587000+00:00", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2025-05-08T00:00:00+00:00", "value": "Made public." } ], "title": "Libsoup: null pointer dereference in libsoup may lead to denial of service", "workarounds": [ { "lang": "en", "value": "To mitigate the risk posed by this libsoup vulnerability, Red Hat strongly advises against connecting client applications relying on the libsoup library to untrusted HTTP servers until systems can be updated to a version of libsoup that includes the fix for this specific flaw. This precaution will help prevent potential denial-of-service scenarios within user sessions." } ], "x_redhatCweChain": "CWE-476: NULL Pointer Dereference" } }, "cveMetadata": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2025-4476", "datePublished": "2025-05-16T17:56:58.302Z", "dateReserved": "2025-05-08T21:17:08.702Z", "dateUpdated": "2025-05-30T07:13:43.442Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-4476\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2025-05-16T18:16:10.970\",\"lastModified\":\"2025-05-19T13:35:20.460\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s 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\u0027s client application into connecting to the attacker\u0027s malicious server.\"},{\"lang\":\"es\",\"value\":\"Se ha identificado una vulnerabilidad de denegaci\u00f3n de servicio en la librer\u00eda cliente HTTP libsoup. Esta falla puede activarse cuando un cliente libsoup recibe una respuesta HTTP 401 (No autorizado) que contiene un par\u00e1metro de dominio espec\u00edficamente dise\u00f1ado dentro del encabezado WWW-Authenticate. El procesamiento de este encabezado malformado puede provocar un bloqueo de la aplicaci\u00f3n cliente que utiliza libsoup. Un atacante podr\u00eda explotar esto configurando un servidor HTTP malicioso. Si la aplicaci\u00f3n de un usuario que utiliza la librer\u00eda libsoup vulnerable se conecta a este servidor malicioso, podr\u00eda provocar una denegaci\u00f3n de servicio. Para explotarla con \u00e9xito, es necesario enga\u00f1ar a la aplicaci\u00f3n cliente del usuario para que se conecte al servidor malicioso del atacante.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"references\":[{\"url\":\"https://access.redhat.com/security/cve/CVE-2025-4476\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2366513\",\"source\":\"secalert@redhat.com\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.