{ "id": "CVE-2021-22945", "sourceIdentifier": "support@hackerone.com", "published": "2021-09-23T13:15:08.690", "lastModified": "2022-12-22T20:21:51.807", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*." }, { "lang": "es", "value": "Cuando se env\u00edan datos a un servidor MQTT, libcurl versiones anteriores a 7.73.0, incluy\u00e9ndola y 7.78.0, podr\u00eda en algunas circunstancias, mantener err\u00f3neamente un puntero a un \u00e1rea de memoria ya liberada y usarlo de nuevo en una llamada posterior para enviar datos y tambi\u00e9n liberarlo *de nuevo*" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": 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[ "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202212-01", "source": "support@hackerone.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20211029-0003/", "source": "support@hackerone.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://support.apple.com/kb/HT213183", "source": "support@hackerone.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2022/dsa-5197", "source": "support@hackerone.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.oracle.com/security-alerts/cpuoct2021.html", "source": "support@hackerone.com", "tags": [ "Patch", "Third Party Advisory" ] } ] }