cve-2023-42815
Vulnerability from cvelistv5
Published
2023-11-13 20:33
Modified
2024-08-02 19:30
Severity ?
EPSS score ?
Summary
Denial of service from malicious image manifest in kyverno
References
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A security vulnerability was found in Kyverno where an attacker could cause denial of service of Kyverno. The vulnerability was in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno would fetch signatures. With such a position, the attacker could return a malicious response to Kyverno, when Kyverno would send a request to the registry. The malicious response would cause denial of service of Kyverno, such that other users\u0027 admission requests would be blocked from being processed. This is a vulnerability in a new component released in v1.11.0. The only users affected by this are those that have been building Kyverno from source at the main branch which is not encouraged. Users consuming official Kyverno releases are not affected. There are no known cases of this vulnerability being exploited in the wild." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-835", "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2023-11-14T18:53:14.598Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "name": "https://github.com/kyverno/kyverno/security/advisories/GHSA-hjpv-68f4-2262", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-hjpv-68f4-2262" }, { "name": "https://github.com/kyverno/kyverno/pull/8428", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kyverno/kyverno/pull/8428" }, { "name": "https://github.com/kyverno/kyverno/commit/80d139bb5d1d9d7e907abe851b97dc73821a5be2", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kyverno/kyverno/commit/80d139bb5d1d9d7e907abe851b97dc73821a5be2" }, { "name": "https://github.com/kyverno/kyverno/commit/fec2992e3f9fcd6b9c62267522c09b182e7df73b", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/kyverno/kyverno/commit/fec2992e3f9fcd6b9c62267522c09b182e7df73b" } ], "source": { "advisory": "GHSA-hjpv-68f4-2262", "discovery": "UNKNOWN" }, "title": "Denial of service from malicious image manifest in kyverno" } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2023-42815", "datePublished": "2023-11-13T20:33:24.955Z", "dateReserved": "2023-09-14T16:13:33.308Z", "dateUpdated": "2024-08-02T19:30:24.650Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2023-42815\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-11-13T21:15:07.940\",\"lastModified\":\"2023-11-21T13:51:52.103\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Kyverno is a policy engine designed for Kubernetes. A security vulnerability was found in Kyverno where an attacker could cause denial of service of Kyverno. The vulnerability was in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno would fetch signatures. With such a position, the attacker could return a malicious response to Kyverno, when Kyverno would send a request to the registry. The malicious response would cause denial of service of Kyverno, such that other users\u0027 admission requests would be blocked from being processed. This is a vulnerability in a new component released in v1.11.0. The only users affected by this are those that have been building Kyverno from source at the main branch which is not encouraged. Users consuming official Kyverno releases are not affected. There are no known cases of this vulnerability being exploited in the wild.\"},{\"lang\":\"es\",\"value\":\"Kyverno es un motor de pol\u00edticas dise\u00f1ado para Kubernetes. Se encontr\u00f3 una vulnerabilidad de seguridad en Kyverno donde un atacante podr\u00eda provocar la denegaci\u00f3n de servicio de Kyverno. La vulnerabilidad estaba en el verificador de Kyvernos Notary. Un atacante necesitar\u00eda controlar el registro del que Kyverno obtendr\u00eda firmas. Con tal posici\u00f3n, el atacante podr\u00eda devolver una respuesta maliciosa a Kyverno, cuando Kyverno enviar\u00eda una solicitud al registro. La respuesta maliciosa provocar\u00eda la denegaci\u00f3n de servicio de Kyverno, de modo que se bloquear\u00eda el procesamiento de las solicitudes de admisi\u00f3n de otros usuarios. Esta es una vulnerabilidad en un nuevo componente lanzado en la versi\u00f3n 1.11.0. Los \u00fanicos usuarios afectados por esto son aquellos que han estado compilando Kyverno desde la fuente en la sucursal principal, lo cual no es recomendable. Los usuarios que consumen versiones oficiales de Kyverno no se ven afectados. No se conocen casos de explotaci\u00f3n de esta vulnerabilidad en la naturaleza.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\",\"baseScore\":3.1,\"baseSeverity\":\"LOW\"},\"exploitabilityScore\":1.6,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nirmata:kyverno:1.11.0:-:*:*:*:go:*:*\",\"matchCriteriaId\":\"60D64C55-D7D4-4EAC-8A8F-2611CABBECDA\"}]}]}],\"references\":[{\"url\":\"https://github.com/kyverno/kyverno/commit/80d139bb5d1d9d7e907abe851b97dc73821a5be2\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/kyverno/kyverno/commit/fec2992e3f9fcd6b9c62267522c09b182e7df73b\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/kyverno/kyverno/pull/8428\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/kyverno/kyverno/security/advisories/GHSA-hjpv-68f4-2262\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]}]}}" } }
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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.