{ "containers": { "cna": { "affected": [ { "product": "Firefox ESR", "vendor": "Mozilla", "versions": [ { "lessThan": "68.4.1", "status": "affected", "version": "unspecified", "versionType": "custom" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "lessThan": "68.4.1", "status": "affected", "version": "unspecified", "versionType": "custom" } ] }, { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "lessThan": "72.0.1", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "descriptions": [ { "lang": "en", "value": "Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1." } ], "problemTypes": [ { "descriptions": [ { "description": "IonMonkey type confusion with StoreElementHole and FallibleStoreElement", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-05-13T17:06:23.000Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://www.mozilla.org/security/advisories/mfsa2020-04/" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.mozilla.org/security/advisories/mfsa2020-03/" }, { "tags": [ "x_refsource_MISC" ], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1607443" }, { "name": "GLSA-202003-02", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202003-02" }, { "name": "USN-4335-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU" ], "url": "https://usn.ubuntu.com/4335-1/" }, { "tags": [ "x_refsource_MISC" ], "url": "http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security@mozilla.org", "ID": "CVE-2019-17026", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Firefox ESR", "version": { "version_data": [ { "version_affected": "<", "version_value": "68.4.1" } ] } }, { "product_name": "Thunderbird", "version": { "version_data": [ { "version_affected": "<", "version_value": "68.4.1" } ] } }, { "product_name": "Firefox", "version": { "version_data": [ { "version_affected": "<", "version_value": "72.0.1" } ] } } ] }, "vendor_name": "Mozilla" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "IonMonkey type confusion with StoreElementHole and FallibleStoreElement" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.mozilla.org/security/advisories/mfsa2020-04/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2020-04/" }, { "name": "https://www.mozilla.org/security/advisories/mfsa2020-03/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2020-03/" }, { "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1607443", "refsource": "MISC", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1607443" }, { "name": "GLSA-202003-02", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202003-02" }, { "name": "USN-4335-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4335-1/" }, { "name": "http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T01:24:48.586Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.mozilla.org/security/advisories/mfsa2020-04/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.mozilla.org/security/advisories/mfsa2020-03/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1607443" }, { "name": "GLSA-202003-02", "tags": [ "vendor-advisory", "x_refsource_GENTOO", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202003-02" }, { "name": "USN-4335-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU", "x_transferred" ], "url": "https://usn.ubuntu.com/4335-1/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html" } ] }, { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2019-17026", "role": "CISA Coordinator", "options": [ { "Exploitation": "active" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-07T12:48:51.769583Z" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026" } } } ], "references": [ { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026", "tags": [ "government-resource" ] } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-843", "description": "CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')" } ] } ], "timeline": [ { "time": "2021-11-03T00:00:00.000Z", "lang": "en", "value": "CVE-2019-17026 added to CISA KEV" } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:35:50.362Z" } } ] }, "cveMetadata": { "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2019-17026", "datePublished": "2020-03-02T04:05:03.000Z", "dateReserved": "2019-09-30T00:00:00.000Z", "dateUpdated": "2025-10-21T23:35:50.362Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }