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Debido a errores en la l\u00f3gica, la funci\u00f3n de coincidencia de la configuraci\u00f3n no ten\u00eda en cuenta \"issuercert\" y comparaba las rutas implicadas *sin tener en cuenta el caso*, que pod\u00eda conllevar a que libcurl reusara conexiones err\u00f3neas. Las rutas de los archivos son, o pueden ser, casos confidenciales en muchos sistemas, pero no en todos, y pueden incluso variar dependiendo de los sistemas de archivos usados. La comparaci\u00f3n tampoco inclu\u00eda el \"issuercert\" que una transferencia puede ajustar para calificar c\u00f3mo verificar el certificado del servidor"}], "id": "CVE-2021-22924", "lastModified": "2025-06-09T15:15:24.403", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", 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{"affected_release": [{"advisory": "RHSA-2022:1354", "cpe": "cpe:/a:redhat:rhel_dotnet:3.1::el7", "package": "rh-dotnet31-curl-0:7.61.1-22.el7_9", "product_name": ".NET Core on Red Hat Enterprise Linux", "release_date": "2022-04-13T00:00:00Z"}, {"advisory": "RHSA-2021:3582", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "curl-0:7.61.1-18.el8_4.1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-09-21T00:00:00Z"}], "bugzilla": {"description": "curl: Bad connection reuse due to flawed path name checks", "id": "1981460", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1981460"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-295", "details": ["libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.", "A flaw was found in libcurl in the way libcurl handles previously used connections without accounting for 'issuer cert' and comparing the involved paths case-insensitively. This flaw allows libcurl to use the wrong connection. The highest threat from this vulnerability is to confidentiality."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by upgrading the affected curl utility to version 7.78.0"}, "name": "CVE-2021-22924", "package_state": [{"cpe": "cpe:/a:redhat:rhel_dotnet:2.1", "fix_state": "Will not fix", "package_name": "rh-dotnet21-curl", "product_name": ".NET Core 2.1 on Red Hat Enterprise Linux"}, {"cpe": "cpe:/a:redhat:ceph_storage:2", "fix_state": "Out of support scope", "package_name": "curl", "product_name": "Red Hat Ceph Storage 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Affected", "package_name": "curl", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Will not fix", "package_name": "httpd24-curl", "product_name": "Red Hat Software Collections"}], "public_date": "2021-07-21T06:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-22924\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-22924\nhttps://curl.se/docs/CVE-2021-22924.html"], "threat_severity": "Moderate"}

{}