CVE-2019-9793

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This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. 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This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Improper bounds checks when Spectre mitigations are disabled"}]}]}, "references": {"reference_data": [{"name": "https://www.mozilla.org/security/advisories/mfsa2019-07/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2019-07/"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2019-08/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2019-08/"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2019-11/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2019-11/"}, {"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528829", "refsource": "MISC", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528829"}, {"name": "RHSA-2019:0966", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:0966"}, {"name": "RHSA-2019:1144", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2019:1144"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T22:01:54.816Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-07/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-08/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-11/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528829"}, {"name": "RHSA-2019:0966", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2019:0966"}, {"name": "RHSA-2019:1144", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2019:1144"}]}]}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2019-9793", "datePublished": "2019-04-26T16:13:22.000Z", "dateReserved": "2019-03-14T00:00:00.000Z", "dateUpdated": "2024-08-04T22:01:54.816Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "60.6", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "60.6", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "66", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "DF5B7642-9E9D-4578-9120-B95A6B198177", "versionEndExcluding": "66.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "matchCriteriaId": "7D949098-633D-43E4-AD71-7B017E7E9BDD", "versionEndExcluding": "60.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "AD62B1F4-1D76-4B74-9637-843D00E7F4FD", "versionEndExcluding": "60.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66."}, {"lang": "es", "value": "Se encontr\u00f3 un mecanismo que elimina algunos l\u00edmites para comprobar los accesos de cadenas, matrices o matrices escritas si se han deshabilitado las mitigaciones de Specter. Esta vulnerabilidad podr\u00eda permitir a un atacante crear un valor arbitrario en JavaScript compilado, para el cual el an\u00e1lisis de rango inferir\u00e1 un rango totalmente controlado e incorrecto en circunstancias donde los usuarios han inhabilitado expl\u00edcitamente las mitigaciones de Spectre. * Nota: las configuraciones de Specter est\u00e1n actualmente habilitadas para todos los usuarios por la configuraci\u00f3n por defecto. *. Esta vulnerabilidad inpacta a Thunderbird versi\u00f3n <60.6, Firefox ESR versi\u00f3n <60.6 y Firefox versi\u00f3n <66"}], "id": "CVE-2019-9793", "lastModified": "2026-06-17T02:44:21.267", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-04-26T17:29:01.850", "references": [{"source": "security@mozilla.org", "url": "https://access.redhat.com/errata/RHSA-2019:0966"}, {"source": "security@mozilla.org", "url": "https://access.redhat.com/errata/RHSA-2019:1144"}, {"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528829"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-07/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-08/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-11/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2019:0966"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2019:1144"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528829"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-07/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-08/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-11/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Bruno Keith & Niklas Baumstark (the phoenhex team) as the original reporter.", "affected_release": [{"advisory": "RHSA-2019:0623", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:60.6.0-3.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-03-20T00:00:00Z"}, {"advisory": "RHSA-2019:0680", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:60.6.1-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-03-28T00:00:00Z"}, {"advisory": "RHSA-2019:0622", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:60.6.0-3.el7_6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-03-20T00:00:00Z"}, {"advisory": "RHSA-2019:0681", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:60.6.1-1.el7_6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-03-28T00:00:00Z"}, {"advisory": "RHSA-2019:0966", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:60.6.1-1.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-05-07T00:00:00Z"}, {"advisory": "RHSA-2019:1144", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:60.6.1-1.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-05-13T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Improper bounds checks when Spectre mitigations are disabled", "id": "1690678", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1690678"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "verified"}, "cwe": "CWE-119", "details": ["A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66."], "name": "CVE-2019-9793", "public_date": "2019-03-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-9793\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9793\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9793"], "threat_severity": "Important"}

{}