CVE-2021-21240

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/httplib2/httplib2/commit/bd9ee252c8f099608019709e22c0d705e98d26bc", "name": "https://github.com/httplib2/httplib2/commit/bd9ee252c8f099608019709e22c0d705e98d26bc", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/httplib2/httplib2/pull/182", "name": "https://github.com/httplib2/httplib2/pull/182", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/httplib2/httplib2/security/advisories/GHSA-93xj-8mrv-444m", "name": "https://github.com/httplib2/httplib2/security/advisories/GHSA-93xj-8mrv-444m", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://pypi.org/project/httplib2", "name": "https://pypi.org/project/httplib2", "tags": ["Product", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of \"\\xa0\" characters in the \"www-authenticate\" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-400"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-21240", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"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:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2021-02-08T20:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:httplib2_project:httplib2:*:*:*:*:*:python:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "0.19.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-02-12T14:56Z"}