CVE-2019-9795 (GCVE-0-2019-9795)
Vulnerability from cvelistv5 – Published: 2019-04-26 16:13 – Updated: 2024-08-04 22:01
VLAI
EPSS
VEX
Summary
A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Severity
9.8 (Critical)
CWE
- Type-confusion in IonMonkey JIT compiler
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1514682 | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:0966 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:1144 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mozilla | Thunderbird |
Affected:
unspecified , < 60.6
(custom)
|
guessed | |
| Mozilla | Firefox ESR |
Affected:
unspecified , < 60.6
(custom)
|
guessed | |
| Mozilla | Firefox |
Affected:
unspecified , < 66
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T22:01:54.918Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"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=1514682"
},
{
"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"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"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"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.6, Firefox ESR \u003c 60.6, and Firefox \u003c 66."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Type-confusion in IonMonkey JIT compiler",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2019-05-13T09:06:07.000Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2019-07/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2019-08/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.mozilla.org/security/advisories/mfsa2019-11/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1514682"
},
{
"name": "RHSA-2019:0966",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2019:0966"
},
{
"name": "RHSA-2019:1144",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2019:1144"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@mozilla.org",
"ID": "CVE-2019-9795",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Thunderbird",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "60.6"
}
]
}
},
{
"product_name": "Firefox ESR",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "60.6"
}
]
}
},
{
"product_name": "Firefox",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "66"
}
]
}
}
]
},
"vendor_name": "Mozilla"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.6, Firefox ESR \u003c 60.6, and Firefox \u003c 66."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Type-confusion in IonMonkey JIT compiler"
}
]
}
]
},
"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=1514682",
"refsource": "MISC",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1514682"
},
{
"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"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2019-9795",
"datePublished": "2019-04-26T16:13:22.000Z",
"dateReserved": "2019-03-14T00:00:00.000Z",
"dateUpdated": "2024-08-04T22:01:54.918Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2019-9795",
"date": "2026-09-16",
"epss": "0.01699",
"percentile": "0.76028"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"66.0\", \"matchCriteriaId\": \"DF5B7642-9E9D-4578-9120-B95A6B198177\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"60.6\", \"matchCriteriaId\": \"7D949098-633D-43E4-AD71-7B017E7E9BDD\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"60.6\", \"matchCriteriaId\": \"AD62B1F4-1D76-4B74-9637-843D00E7F4FD\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.6, Firefox ESR \u003c 60.6, and Firefox \u003c 66.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de confusi\\u00f3n de tipo en compilador IonMonkey just-in-time (JIT) podr\\u00eda ser utilizado por JavaScript malicioso para desencadenar un fallo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 60.6, Firefox ESR versiones anteriores a 60.6 y Firefox versiones anteriores a 66.\"}]",
"id": "CVE-2019-9795",
"lastModified": "2024-11-21T04:52:19.480",
"metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 7.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2019-04-26T17:29:02.290",
"references": "[{\"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\"}, {\"url\": \"https://bugzilla.mozilla.org/show_bug.cgi?id=1514682\", \"source\": \"security@mozilla.org\", \"tags\": [\"Issue Tracking\", \"Permissions Required\", \"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\": \"security@mozilla.org\", \"tags\": [\"Vendor Advisory\"]}, {\"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\"}, {\"url\": \"https://bugzilla.mozilla.org/show_bug.cgi?id=1514682\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Permissions Required\", \"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/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-617\"}, {\"lang\": \"en\", \"value\": \"CWE-843\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2019-9795\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2019-04-26T17:29:02.290\",\"lastModified\":\"2024-11-21T04:52:19.480\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.6, Firefox ESR \u003c 60.6, and Firefox \u003c 66.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de confusi\u00f3n de tipo en compilador IonMonkey just-in-time (JIT) podr\u00eda ser utilizado por JavaScript malicioso para desencadenar un fallo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 60.6, Firefox ESR versiones anteriores a 60.6 y Firefox versiones anteriores a 66.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"},{\"lang\":\"en\",\"value\":\"CWE-843\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"66.0\",\"matchCriteriaId\":\"DF5B7642-9E9D-4578-9120-B95A6B198177\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"60.6\",\"matchCriteriaId\":\"7D949098-633D-43E4-AD71-7B017E7E9BDD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"60.6\",\"matchCriteriaId\":\"AD62B1F4-1D76-4B74-9637-843D00E7F4FD\"}]}]}],\"references\":[{\"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\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1514682\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"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\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"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\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1514682\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"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/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-06-26T22:54:27+00:00",
"cve": "CVE-2019-9795",
"id": "CVE-2019-9795",
"initial_release_date": "2019-03-20T00:00:00+00:00",
"product_status:fixed": "113",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Mozilla: Type-confusion in IonMonkey JIT compiler",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-9795.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-03T00:54:37Z",
"cve": "CVE-2019-9795",
"id": "CVE-2019-9795",
"initial_release_date": "2023-02-15T04:14:15Z",
"product_status:known_affected": "24",
"product_status:known_not_affected": "87",
"product_status:recommended": "380",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2019-9795",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-9795.json",
"version": "25"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…