CVE-2020-6822

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{"affected": [{"affectedData": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "68.7.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "68.7", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "75", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "925D894A-1609-43FB-94FE-84B3EAB9CE72", "versionEndExcluding": "75.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "matchCriteriaId": "D5D6475F-6C46-4BF0-B372-900A5B9FAED5", "versionEndExcluding": "68.7.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "CF7AEB5A-A52E-45E7-AFBF-546C351A4915", "versionEndExcluding": "68.7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75."}, {"lang": "es", "value": "En las compilaciones de 32 bits, podr\u00eda haber ocurrido una escritura fuera de l\u00edmites al procesar una imagen de m\u00e1s de 4 GB en (code)GMPDecodeData(/code). Es posible que con suficiente esfuerzo esto podr\u00eda haber sido explotado para ejecutar c\u00f3digo arbitrario. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a la versi\u00f3n 68.7.0, Firefox ESR versiones anteriores a la versi\u00f3n 68.7 y Firefox versiones anteriores a 75."}], "id": "CVE-2020-6822", "lastModified": "2026-06-17T03:23:52.263", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-24T16:15:13.573", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1544181"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4335-1/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-12/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-13/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-14/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1544181"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4335-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-12/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-13/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-14/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Deian Stefan as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:1429", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:68.7.0-2.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-04-14T00:00:00Z"}, {"advisory": "RHSA-2020:1488", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:68.7.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1420", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:68.7.0-2.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-04-09T00:00:00Z"}, {"advisory": "RHSA-2020:1489", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:68.7.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1406", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:68.7.0-2.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-08T00:00:00Z"}, {"advisory": "RHSA-2020:1495", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:68.7.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1404", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "firefox-0:68.7.0-2.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-04-08T00:00:00Z"}, {"advisory": "RHSA-2020:1496", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "thunderbird-0:68.7.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-04-16T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Out of bounds write in GMPDecodeData when processing large images", "id": "1821676", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1821676"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-119", "details": ["On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.", "The Mozilla Foundation Security Advisory describes this flaw as:\nOn 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in GMPDecodeData. It is possible that with enough effort this could have been exploited to run arbitrary code."], "name": "CVE-2020-6822", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2020-04-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-6822\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-6822\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-13/#CVE-2020-6822"], "threat_severity": "Moderate"}

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