FKIE_CVE-2021-30663
Vulnerability from fkie_nvd - Published: 2021-09-08 15:15 - Updated: 2025-10-23 14:55
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.
References
{
"cisaActionDue": "2021-11-17",
"cisaExploitAdd": "2021-11-03",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Apple Multiple Products WebKit Integer Overflow Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FFDA8CE0-8F2C-4FA7-91F8-A720F56EBC5D",
"versionEndExcluding": "14.1.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"matchCriteriaId": "35BD9C02-08C2-45A2-BC2C-A19111C293F3",
"versionEndExcluding": "14.5.1",
"versionStartIncluding": "14.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"matchCriteriaId": "443BF1FD-EC67-437D-A9CA-EEB3EF25B701",
"versionEndExcluding": "12.5.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EBBD83AD-8615-422B-AE3E-39D4AB86D8FC",
"versionEndExcluding": "14.5.1",
"versionStartIncluding": "14.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "14B2F397-655E-44C5-B9A3-8C4435675F42",
"versionEndExcluding": "11.3.1",
"versionStartIncluding": "11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9076D8C8-70CD-4DE5-8BAE-8CA6A5BEDDB3",
"versionEndExcluding": "14.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution."
},
{
"lang": "es",
"value": "Se abord\u00f3 un desbordamiento de enteros con una comprobaci\u00f3n de entrada mejorada. Este problema es corregido en iOS versi\u00f3n 14.5.1 y iPadOS versi\u00f3n 14.5.1, tvOS versi\u00f3n 14.6, iOS versi\u00f3n 12.5.3, Safari versi\u00f3n 14.1.1, macOS Big Sur versi\u00f3n 11.3.1. El procesamiento de contenido web maliciosamente dise\u00f1ado puede conllevar a una ejecuci\u00f3n de c\u00f3digo arbitrario"
}
],
"id": "CVE-2021-30663",
"lastModified": "2025-10-23T14:55:43.020",
"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"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2021-09-08T15:15:13.413",
"references": [
{
"source": "product-security@apple.com",
"tags": [
"Vendor Advisory",
"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212335"
},
{
"source": "product-security@apple.com",
"tags": [
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"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212336"
},
{
"source": "product-security@apple.com",
"tags": [
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"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212341"
},
{
"source": "product-security@apple.com",
"tags": [
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"url": "https://support.apple.com/en-us/HT212532"
},
{
"source": "product-security@apple.com",
"tags": [
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"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212534"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://support.apple.com/en-us/HT212335"
},
{
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"tags": [
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"url": "https://support.apple.com/en-us/HT212336"
},
{
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"tags": [
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],
"url": "https://support.apple.com/en-us/HT212341"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212532"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory",
"Release Notes"
],
"url": "https://support.apple.com/en-us/HT212534"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30663"
}
],
"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-190"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-190"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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