CVE-2020-24837

{"id": "CVE-2020-24837", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-02-10T16:15:13.630", "references": [{"url": "https://etherscan.io/address/0x9d79c6e2a0222b9ac7bfabc447209c58fe9e0dcc#code", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-191"}]}], "descriptions": [{"lang": "en", "value": "An integer underflow has been found in the latest version of ZCFees. The variables 'currPeriodIdx' and 'lastPeriodExecIdx' are both unsigned integers, and the result of the minus operation may be a negative integer which leads to an underflow. The attackers can modify the current timestamp of the transaction somehow and block the execution of the process function."}, {"lang": "es", "value": "Se ha encontrado un subdesbordamiento de enteros en la \u00faltima versi\u00f3n de ZCFees. Las variables \"currPeriodIdx\" y \"lastPeriodExecIdx\" son ambas enteras sin signo, y el resultado de una operaci\u00f3n menos puede ser un entero negativo que conlleva a un desbordamiento. Los atacantes pueden modificar la marca de tiempo actual de la transacci\u00f3n de alguna manera y bloquear la ejecuci\u00f3n de la funci\u00f3n del proceso"}], "lastModified": "2021-02-17T13:38:05.907", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zcfees_project:zcfees:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29584046-CD15-46F8-B351-B5E41CA72B11"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}