{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2020-6817", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "dateUpdated": "2023-02-16T00:00:00", "dateReserved": "2020-01-10T00:00:00", "datePublished": "2023-02-16T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2023-02-16T00:00:00"}, "descriptions": [{"lang": "en", "value": "bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']})."}], "affected": [{"vendor": "Mozilla", "product": "Mozilla Bleach", "versions": [{"version": "unspecified", "lessThan": "3.1.4", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://github.com/mozilla/bleach/security/advisories/GHSA-vqhp-cxgc-6wmm"}, {"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1623633"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "regular expression denial-of-service (ReDoS) in BleachSanitizerFilter.sanitize_css gauntlet regular expression "}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"discovery": "UNKNOWN"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:*", "matchCriteriaId": "21F7320C-9B5F-4B16-896E-2326A8B8B488", "versionEndExcluding": "3.1.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']})."}], "id": "CVE-2020-6817", "lastModified": "2023-02-28T14:46:27.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-02-16T22:15:10.650", "references": [{"source": "security@mozilla.org", "tags": ["Exploit", "Issue Tracking"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1623633"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://github.com/mozilla/bleach/security/advisories/GHSA-vqhp-cxgc-6wmm"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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