CVE-2015-6925 - Vulnerability Details - OpenCVE

wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Wolfssl	Wolfssl

Configuration 1 [-]

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
https://github.com/IAIK/wolfSSL-DoS
https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2016-01-22T15:00:00

Updated: 2024-08-06T07:36:34.387Z

Reserved: 2015-09-12T00:00:00

Link: CVE-2015-6925

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2016-01-22T15:59:03.507

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-6925

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2015-09-17T00:00:00", "descriptions": [{"lang": "en", "value": "wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2016-01-22T14:57:01", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/IAIK/wolfSSL-DoS"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2015-6925", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html", "refsource": "CONFIRM", "url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"}, {"name": "https://github.com/IAIK/wolfSSL-DoS", "refsource": "MISC", "url": "https://github.com/IAIK/wolfSSL-DoS"}, {"name": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html", "refsource": "CONFIRM", "url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T07:36:34.387Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/IAIK/wolfSSL-DoS"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2015-6925", "datePublished": "2016-01-22T15:00:00", "dateReserved": "2015-09-12T00:00:00", "dateUpdated": "2024-08-06T07:36:34.387Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*", "matchCriteriaId": "DFFC4005-138B-4A1E-8677-83002B969256", "versionEndIncluding": "3.6.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message."}, {"lang": "es", "value": "wolfSSL (anteriormente CyaSSL) en versiones anteriores a 3.6.8 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de recurso o amplificaci\u00f3n de tr\u00e1fico) a trav\u00e9s de una cookie DTLS manipulada en un mensaje ClientHello."}], "id": "CVE-2015-6925", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-01-22T15:59:03.507", "references": [{"source": "cve@mitre.org", "url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "https://github.com/IAIK/wolfSSL-DoS"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Vendor Advisory"], "url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://github.com/IAIK/wolfSSL-DoS"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}