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.
History

Fri, 16 May 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 May 2025 18:00:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. 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.
Title libsoup: Null pointer dereference in libsoup may lead to Denial Of Service Libsoup: null pointer dereference in libsoup may lead to denial of service
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References

Fri, 16 May 2025 02:30:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title libsoup: Null pointer dereference in libsoup may lead to Denial Of Service
Weaknesses CWE-476
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

threat_severity

Low


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-05-16T18:08:17.873Z

Reserved: 2025-05-08T21:17:08.702Z

Link: CVE-2025-4476

cve-icon Vulnrichment

Updated: 2025-05-16T18:08:14.080Z

cve-icon NVD

Status : Received

Published: 2025-05-16T18:16:10.970

Modified: 2025-05-16T18:16:10.970

Link: CVE-2025-4476

cve-icon Redhat

Severity : Low

Publid Date: 2025-05-08T00:00:00Z

Links: CVE-2025-4476 - Bugzilla