CVE-2021-30995 (GCVE-0-2021-30995)
Vulnerability from cvelistv5 – Published: 2021-08-24 18:51 – Updated: 2024-08-03 22:48
VLAI
EPSS
VEX
Summary
A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to elevate privileges.
Severity
7.0 (High)
CWE
- A malicious application may be able to elevate privileges
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://support.apple.com/en-us/HT212975 | x_refsource_MISC |
| https://support.apple.com/en-us/HT212976 | x_refsource_MISC |
| https://support.apple.com/en-us/HT212978 | x_refsource_MISC |
| https://support.apple.com/en-us/HT212979 | x_refsource_MISC |
| https://support.apple.com/en-us/HT212981 | x_refsource_MISC |
| https://support.apple.com/en-us/HT212980 | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
6 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apple | watchOS |
Affected:
unspecified , < 8.3
(custom)
|
guessed | |
| Apple | iOS and iPadOS |
Affected:
unspecified , < 15.2
(custom)
|
guessed | |
| Apple | macOS |
Affected:
unspecified , < 12.1
(custom)
|
guessed | |
| Apple | macOS |
Affected:
unspecified , < 11.6
(custom)
|
guessed | |
| Apple | macOS |
Affected:
unspecified , < 15.2
(custom)
|
guessed | |
| Apple | macOS |
Affected:
unspecified , < 2021
(custom)
|
guessed |
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{
"criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*",
"matchCriteriaId": "50F21A3C-0AC3-48C5-A4F8-5A7B478875B4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*",
"matchCriteriaId": "C1C795B9-E58D-467C-83A8-2D45C792292F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "287EBE44-07C0-41D3-B268-CC86CA5FD792",
"versionEndExcluding": "11.6.2",
"versionStartIncluding": "11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CA118623-E817-42AA-AB39-6239B1284192",
"versionEndExcluding": "12.1",
"versionStartIncluding": "12.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "16CAE2FB-FADC-4BF4-9115-D20D365051BF",
"versionEndExcluding": "15.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7A7245FB-6FBE-4C09-80F5-18504CA623B3",
"versionEndExcluding": "8.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to elevate privileges."
},
{
"lang": "es",
"value": "Se solucion\u00f3 una condici\u00f3n de carrera con un manejo de estado mejorado.\u0026#xa0;Este problema se solucion\u00f3 en macOS Big Sur versi\u00f3n 11.6.2, tvOS versi\u00f3n 15.2, macOS Monterey versi\u00f3n 12.1, actualizaci\u00f3n de seguridad 2021-008 Catalina, iOS versi\u00f3n 15.2 e iPadOS versi\u00f3n 15.2, watchOS versi\u00f3n 8.3.\u0026#xa0;Una aplicaci\u00f3n maliciosa puede elevar los privilegios"
}
],
"id": "CVE-2021-30995",
"lastModified": "2024-11-21T06:05:07.193",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 4.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-08-24T19:15:24.157",
"references": [
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212975"
},
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212976"
},
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212978"
},
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212979"
},
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212980"
},
{
"source": "product-security@apple.com",
"url": "https://support.apple.com/en-us/HT212981"
},
{
"source": "product-security@apple.com",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-360/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212975"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212976"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212978"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212979"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212980"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://support.apple.com/en-us/HT212981"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-360/"
}
],
"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T14:09:38+00:00",
"cve": "CVE-2021-30995",
"id": "CVE-2021-30995",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-30995",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-30995.json",
"version": "3"
}
}
}
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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.
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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.
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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.
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