CVE-2020-9955

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://support.apple.com/en-us/HT211843	Vendor Advisory
https://support.apple.com/en-us/HT211844	Vendor Advisory
https://support.apple.com/en-us/HT211850	Vendor Advisory
https://support.apple.com/en-us/HT211931	Vendor Advisory
https://support.apple.com/en-us/HT211843	Vendor Advisory
https://support.apple.com/en-us/HT211844	Vendor Advisory
https://support.apple.com/en-us/HT211850	Vendor Advisory
https://support.apple.com/en-us/HT211931	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

21 Nov 2024, 05:41

Type	Values Removed	Values Added
References	~~() https://support.apple.com/en-us/HT211843 - Vendor Advisory~~	() https://support.apple.com/en-us/HT211843 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT211844 - Vendor Advisory~~	() https://support.apple.com/en-us/HT211844 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT211850 - Vendor Advisory~~	() https://support.apple.com/en-us/HT211850 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT211931 - Vendor Advisory~~	() https://support.apple.com/en-us/HT211931 - Vendor Advisory

Information

Published : 2021-04-02 18:15

Updated : 2024-11-21 05:41

NVD link : CVE-2020-9955

Mitre link : CVE-2020-9955

CVE.ORG link : CVE-2020-9955

JSON object : View

Products Affected

apple

macos
ipados
watchos
iphone_os
tvos

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2020-9955", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/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"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-04-02T18:15:18.340", "references": [{"url": "https://support.apple.com/en-us/HT211843", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT211844", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT211850", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT211931", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT211843", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/en-us/HT211844", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/en-us/HT211850", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/en-us/HT211931", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution."}, {"lang": "es", "value": "Se abord\u00f3 un problema de escritura fuera de l\u00edmites con la mejora una comprobaci\u00f3n de l\u00edmites. Este problema es corregido en watchOS versi\u00f3n 7.0, tvOS versi\u00f3n 14.0, iOS versi\u00f3n 14.0 y iPadOS versi\u00f3n 14.0, macOS Big Sur versi\u00f3n 11.0.1. El procesamiento de una imagen dise\u00f1ada maliciosamente puede conllevar a una ejecuci\u00f3n de c\u00f3digo arbitraria."}], "lastModified": "2024-11-21T05:41:35.590", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "10CC9ED4-9AE1-415A-94FF-60CB209506CA", "versionEndExcluding": "14.0"}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16AF4D2F-3C55-4DCC-A253-3F8CB4F453EF", "versionEndExcluding": "14.0"}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "76BFC9D4-7D15-4C23-A54A-3F5A0B8BC542", "versionEndExcluding": "11.0.1", "versionStartIncluding": "11.0"}, {"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D16EC4D-D2E7-476D-BFBC-3703C8F0B45E", "versionEndExcluding": "14.0"}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C117BCCF-7789-40BB-AD25-1E712F6DCF7C", "versionEndExcluding": "7.0"}], "operator": "OR"}]}], "sourceIdentifier": "product-security@apple.com"}