CVE-2024-39305

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Prior to versions 1.30.4, 1.29.7, 1.28.5, and 1.27.7. Envoy references already freed memory when route hash policy is configured with cookie attributes. Note that this vulnerability has been fixed in the open as the effect would be immediately apparent if it was configured. Memory allocated for holding attribute values is freed after configuration was parsed. During request processing Envoy will attempt to copy content of de-allocated memory into request cookie header. This can lead to arbitrary content of Envoy's memory to be sent to the upstream service or abnormal process termination. This vulnerability is fixed in Envoy versions v1.30.4, v1.29.7, v1.28.5, and v1.27.7. As a workaround, do not use cookie attributes in route action hash policy."}], "source": {"advisory": "GHSA-fp35-g349-h66f", "discovery": "UNKNOWN"}}, "adp": [{"affected": [{"vendor": "envoyproxy", "product": "envoy", "cpes": ["cpe:2.3:a:envoyproxy:envoy:1.28.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.29.0:*:*:*:*:*:*:*", "cpe:2.3:a:envoyproxy:envoy:1.30.0:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "1.28.0", "status": "affected", "lessThan": "1.28.5", "versionType": "custom"}, {"version": "1.29.0", "status": "affected", "lessThan": "1.29.7", "versionType": "custom"}, {"version": "1.30.0", "status": "affected", "lessThan": "1.30.4", "versionType": "custom"}]}, {"vendor": "envoyproxy", "product": "envoy", "cpes": ["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "1.27.7", "versionType": "custom"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-07-31T20:29:30.709681Z", "id": "CVE-2024-39305", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-31T20:34:09.900Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:19:20.740Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-fp35-g349-h66f", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-fp35-g349-h66f"}, {"name": "https://github.com/envoyproxy/envoy/commit/02a06681fbe0e039b1c7a9215257a7537eddb518", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/commit/02a06681fbe0e039b1c7a9215257a7537eddb518"}, {"name": "https://github.com/envoyproxy/envoy/commit/50b384cb203a1f2894324cbae64b6d9bc44cce45", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/commit/50b384cb203a1f2894324cbae64b6d9bc44cce45"}, {"name": "https://github.com/envoyproxy/envoy/commit/99b6e525fb9f6f6f19a0425f779bc776f121c7e5", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/commit/99b6e525fb9f6f6f19a0425f779bc776f121c7e5"}, {"name": "https://github.com/envoyproxy/envoy/commit/b7f509607ad860fd6a63cde4f7d6f0197f9f63bb", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/commit/b7f509607ad860fd6a63cde4f7d6f0197f9f63bb"}]}]}}

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Prior to versions 1.30.4, 1.29.7, 1.28.5, and 1.27.7. Envoy references already freed memory when route hash policy is configured with cookie attributes. Note that this vulnerability has been fixed in the open as the effect would be immediately apparent if it was configured. Memory allocated for holding attribute values is freed after configuration was parsed. During request processing Envoy will attempt to copy content of de-allocated memory into request cookie header. This can lead to arbitrary content of Envoy's memory to be sent to the upstream service or abnormal process termination. This vulnerability is fixed in Envoy versions v1.30.4, v1.29.7, v1.28.5, and v1.27.7. As a workaround, do not use cookie attributes in route action hash policy."}, {"lang": "es", "value": "Envoy es un proxy de servicio y borde de c\u00f3digo abierto, nativo de la nube. Antes de las versiones 1.30.4, 1.29.7, 1.28.5 y 1.27.7. Envoy hace referencia a la memoria ya liberada cuando la pol\u00edtica de hash de ruta se configura con atributos de cookies. Tenga en cuenta que esta vulnerabilidad se ha solucionado abiertamente, ya que el efecto ser\u00eda inmediatamente evidente si se configurara. La memoria asignada para contener valores de atributos se libera despu\u00e9s de analizar la configuraci\u00f3n. Durante el procesamiento de la solicitud, Envoy intentar\u00e1 copiar el contenido de la memoria desasignada en el encabezado de la cookie de solicitud. Esto puede provocar que el contenido arbitrario de la memoria de Envoy se env\u00ede al servicio ascendente o que el proceso finalice anormalmente. Esta vulnerabilidad se solucion\u00f3 en las versiones de Envoy v1.30.4, v1.29.7, v1.28.5 y v1.27.7. Como workaround, no utilice atributos de cookies en la pol\u00edtica hash de acci\u00f3n de ruta."}], "id": "CVE-2024-39305", "lastModified": "2026-06-17T07:41:40.880", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-39305", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-07-31T20:29:30.709681Z", "version": "2.0.3"}}]}, "published": "2024-07-01T21:15:04.520", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/02a06681fbe0e039b1c7a9215257a7537eddb518"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/50b384cb203a1f2894324cbae64b6d9bc44cce45"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/99b6e525fb9f6f6f19a0425f779bc776f121c7e5"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/b7f509607ad860fd6a63cde4f7d6f0197f9f63bb"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-fp35-g349-h66f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/02a06681fbe0e039b1c7a9215257a7537eddb518"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/50b384cb203a1f2894324cbae64b6d9bc44cce45"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/99b6e525fb9f6f6f19a0425f779bc776f121c7e5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commit/b7f509607ad860fd6a63cde4f7d6f0197f9f63bb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-fp35-g349-h66f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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