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ID

VAR-202110-1684


CVE

CVE-2021-30847


TITLE

plural  Apple  Product vulnerabilities

Trust: 0.8

sources: JVNDB: JVNDB-2021-014008

DESCRIPTION

This issue was addressed with improved checks. This issue is fixed in watchOS 8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing a maliciously crafted image may lead to arbitrary code execution. plural Apple There are unspecified vulnerabilities in the product.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. iOS 15 and iPadOS 15. Installation note: Instructions on how to update your Apple Watch software are available at https://support.apple.com/kb/HT204641 To check the version on your Apple Watch, open the Apple Watch app on your iPhone and select "My Watch > General > About". Alternatively, on your watch, select "My Watch > General > About". -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 macOS Big Sur 11.6 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212804. Apple is aware of a report that this issue may have been actively exploited. Description: An integer overflow was addressed with improved input validation. CVE-2021-30860: The Citizen Lab CUPS Available for: macOS Big Sur Impact: A local attacker may be able to elevate their privileges Description: A permissions issue existed. CVE-2021-30827: an anonymous researcher Entry added September 20, 2021 CUPS Available for: macOS Big Sur Impact: A local user may be able to read arbitrary files as root Description: This issue was addressed with improved checks. CVE-2021-30828: an anonymous researcher Entry added September 20, 2021 CUPS Available for: macOS Big Sur Impact: A local user may be able to execute arbitrary files Description: A URI parsing issue was addressed with improved parsing. CVE-2021-30829: an anonymous researcher Entry added September 20, 2021 curl Available for: macOS Big Sur Impact: curl could potentially reveal sensitive internal information to the server using a clear-text network protocol Description: A buffer overflow was addressed with improved input validation. CVE-2021-22925 Entry added September 20, 2021 CVMS Available for: macOS Big Sur Impact: A local attacker may be able to elevate their privileges Description: A memory corruption issue was addressed with improved state management. CVE-2021-30832: Mickey Jin (@patch1t) of Trend Micro Entry added September 20, 2021 FontParser Available for: macOS Big Sur Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30841: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30842: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30843: Xingwei Lin of Ant Security Light-Year Lab Entry added September 20, 2021 Gatekeeper Available for: macOS Big Sur Impact: A malicious application may bypass Gatekeeper checks Description: This issue was addressed with improved checks. CVE-2021-30853: Gordon Long (@ethicalhax) of Box, Inc. CVE-2021-30847: Mike Zhang of Pangu Lab Entry added September 20, 2021 Kernel Available for: macOS Big Sur Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2021-30830: Zweig of Kunlun Lab Entry added September 20, 2021 Kernel Available for: macOS Big Sur Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-30865: Zweig of Kunlun Lab Entry added September 20, 2021 Kernel Available for: macOS Big Sur Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A race condition was addressed with improved locking. CVE-2021-30857: Zweig of Kunlun Lab Entry added September 20, 2021 Kernel Available for: macOS Big Sur Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A type confusion issue was addressed with improved state handling. CVE-2021-30859: Apple Entry added September 20, 2021 libexpat Available for: macOS Big Sur Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed by updating expat to version 2.4.1. CVE-2013-0340: an anonymous researcher Entry added September 20, 2021 Preferences Available for: macOS Big Sur Impact: An application may be able to access restricted files Description: A validation issue existed in the handling of symlinks. CVE-2021-30855: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) Entry added September 20, 2021 Sandbox Available for: macOS Big Sur Impact: A user may gain access to protected parts of the file system Description: An access issue was addressed with improved access restrictions. CVE-2021-30850: an anonymous researcher Entry added September 20, 2021 SMB Available for: macOS Big Sur Impact: A local user may be able to read kernel memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-30845: Peter Nguyen Vu Hoang of STAR Labs Entry added September 20, 2021 SMB Available for: macOS Big Sur Impact: A remote attacker may be able to leak memory Description: A logic issue was addressed with improved state management. CVE-2021-30844: Peter Nguyen Vu Hoang of STAR Labs Entry added September 20, 2021 WebKit Available for: macOS Big Sur Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. CVE-2021-30858: an anonymous researcher Additional recognition APFS We would like to acknowledge Koh M. Nakagawa of FFRI Security, Inc. for their assistance. Entry added September 20, 2021 App Support We would like to acknowledge @CodeColorist, an anonymous researcher for their assistance. Entry added September 20, 2021 CoreML We would like to acknowledge hjy79425575 working with Trend Micro Zero Day Initiative for their assistance. Entry added September 20, 2021 CUPS We would like to acknowledge an anonymous researcher for their assistance. Entry added September 20, 2021 Kernel We would like to acknowledge Anthony Steinhauser of Google's Safeside project for their assistance. Entry added September 20, 2021 Sandbox We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive Security for their assistance. Entry added September 20, 2021 smbx We would like to acknowledge Zhongcheng Li (CK01) for their assistance. Entry added September 20, 2021 Installation note: This update may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEePiLW1MrMjw19XzoeC9qKD1prhgFAmFI888ACgkQeC9qKD1p rhi/Bg/9GiqXl8sxPjDpATJqneZ1GcAxWxBZgkFrcLV/cMwrVqniWsOeVHqHjMSY eJUkGehUtKsYE0g8Uk0qJqOUl3dxxGJpIDytOQJB3TFdd1BpZSK/tOChVem1JV1B +CMhqDnmR/u7bLqfCr1p6J5QJNHjTjgBA4RthdzZZ52pLGql7/2qfaJwpeHkheS4 5EKmch8zh0CGRqrUTg1HgY67ierNsz47jIU6n7UeMwjskRU3xM9VqJ9s4eKGAtSv 4Ry16pv0xUZ4cmL5EiLm2/eFbY8ByCji7jYPP0POBO4l518TGpaX2PaZBP9v0rrD t6cPEZHnsRaZ49OYak6z9iA8teKGSs6aCMuzSxExvlT8+YySf1o1nefbRH/tZMfn bwSO0ZyPsS9WYyuG/zX08U3CKOTkjqhLaOwVwte+cAeg2QS85aa9XPMG6PKcpyfu R7auxS92+Dg+R+97dAsI9TprSutCTw4iY8lyK9MVJSnh+zQSZEihUh4EaSufTHRC NlOSHvsTfXqsHaeed6sVKyX4ADHCUvRbCCIrqJKUs6waNd2T2XF7SzvgTSDJMHU9 4AL/jpnltTjDJTtMO999VZKNzYurrGiHvBs5zHWr91+eaHW8YGdsDERsX3BFYLe3 85i+Yge0iXlP7mT32cWxIw4AWDFITFiHnmV1/cdsCd2GIkqkhFw= =9bjT -----END PGP SIGNATURE-----

Trust: 2.34

sources: NVD: CVE-2021-30847 // JVNDB: JVNDB-2021-014008 // VULHUB: VHN-390580 // VULMON: CVE-2021-30847 // PACKETSTORM: 164693 // PACKETSTORM: 164692 // PACKETSTORM: 164256 // PACKETSTORM: 164249 // PACKETSTORM: 164246 // PACKETSTORM: 164234

AFFECTED PRODUCTS

vendor:applemodel:mac os xscope:lteversion:10.15.6

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vendor:applemodel:tvosscope:ltversion:15.0

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vendor:applemodel:watchosscope:ltversion:8.0

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vendor:applemodel:itunesscope:ltversion:12.12

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vendor:applemodel:iphone osscope:ltversion:15.0

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vendor:applemodel:ipadosscope:ltversion:15.0

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vendor:applemodel:mac os xscope:gteversion:10.15

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vendor:applemodel:mac os xscope:eqversion:10.15.7

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vendor:applemodel:macosscope:gteversion:11.0

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vendor:applemodel:macosscope:ltversion:11.6

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vendor:アップルmodel:ipadosscope: - version: -

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vendor:アップルmodel:iosscope: - version: -

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vendor:アップルmodel:tvosscope: - version: -

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vendor:アップルmodel:itunesscope: - version: -

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vendor:アップルmodel:watchosscope: - version: -

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vendor:アップルmodel:apple mac os xscope: - version: -

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vendor:アップルmodel:macosscope: - version: -

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sources: JVNDB: JVNDB-2021-014008 // NVD: CVE-2021-30847

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-30847
value: HIGH

Trust: 1.0

NVD: CVE-2021-30847
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202109-1274
value: HIGH

Trust: 0.6

VULHUB: VHN-390580
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-30847
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-390580
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-30847
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2021-30847
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-390580 // CNNVD: CNNVD-202109-1274 // JVNDB: JVNDB-2021-014008 // NVD: CVE-2021-30847

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

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problemtype:Lack of information (CWE-noinfo) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-014008 // NVD: CVE-2021-30847

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202109-1274

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202109-1274

PATCH

title:HT212807 Apple  Security updateurl:https://support.apple.com/en-us/HT212804

Trust: 0.8

title:Apple iTunes Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=166478

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title:Apple: iOS 15 and iPadOS 15url:https://vulmon.com/vendoradvisory?qidtp=apple_security_advisories&qid=f34e9bd3d1b055a84fc033981719f5fb

Trust: 0.1

sources: VULMON: CVE-2021-30847 // CNNVD: CNNVD-202109-1274 // JVNDB: JVNDB-2021-014008

EXTERNAL IDS

db:NVDid:CVE-2021-30847

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db:PACKETSTORMid:164692

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db:JVNDBid:JVNDB-2021-014008

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db:PACKETSTORMid:164256

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db:CS-HELPid:SB2021092024

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db:AUSCERTid:ESB-2021.3158

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db:AUSCERTid:ESB-2021.3578

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db:CNNVDid:CNNVD-202109-1274

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db:PACKETSTORMid:164693

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db:PACKETSTORMid:164689

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db:VULHUBid:VHN-390580

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db:VULMONid:CVE-2021-30847

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db:PACKETSTORMid:164249

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db:PACKETSTORMid:164246

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db:PACKETSTORMid:164234

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sources: VULHUB: VHN-390580 // VULMON: CVE-2021-30847 // PACKETSTORM: 164693 // PACKETSTORM: 164692 // PACKETSTORM: 164256 // PACKETSTORM: 164249 // PACKETSTORM: 164246 // PACKETSTORM: 164234 // CNNVD: CNNVD-202109-1274 // JVNDB: JVNDB-2021-014008 // NVD: CVE-2021-30847

REFERENCES

url:http://seclists.org/fulldisclosure/2021/oct/62

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url:http://seclists.org/fulldisclosure/2021/oct/63

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url:http://seclists.org/fulldisclosure/2021/oct/61

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url:https://support.apple.com/en-us/ht212815

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url:https://support.apple.com/en-us/ht212817

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30847

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url:https://support.apple.com/kb/ht212807

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url:https://support.apple.com/kb/ht212953

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url:https://support.apple.com/en-us/ht212804

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url:https://support.apple.com/en-us/ht212805

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url:https://support.apple.com/en-us/ht212814

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url:https://support.apple.com/en-us/ht212819

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url:https://support.apple.com/kb/ht201222

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url:https://www.apple.com/support/security/pgp/

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url:https://www.auscert.org.au/bulletins/esb-2021.3578

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url:https://www.auscert.org.au/bulletins/esb-2021.3158

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url:https://packetstormsecurity.com/files/164692/apple-security-advisory-2021-10-26-10.html

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url:https://packetstormsecurity.com/files/164256/apple-security-advisory-2021-09-20-10.html

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url:https://support.apple.com/en-us/ht212953

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url:https://vigilance.fr/vulnerability/apple-ios-macos-multiple-vulnerabilities-36461

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url:https://www.cybersecurity-help.cz/vdb/sb2021092024

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url:https://nvd.nist.gov/vuln/detail/cve-2013-0340

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30841

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30843

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30857

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30842

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30835

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30849

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30855

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30854

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30851

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30846

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30837

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30810

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30850

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30852

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30808

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30834

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30818

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30809

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30831

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30823

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30866

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30814

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30840

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30836

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url:https://support.apple.com/kb/ht204641

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url:https://support.apple.com/ht212819.

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30811

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url:https://nvd.nist.gov/vuln/detail/cve-2021-22925

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30830

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30832

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30828

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30844

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url:https://support.apple.com/downloads/

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30859

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30829

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30865

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30827

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30860

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url:http://seclists.org/fulldisclosure/2021/sep/42

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url:https://support.apple.com/kb/ht212814

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30884

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url:https://support.apple.com/ht212815.

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url:https://www.apple.com/itunes/download/

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url:https://support.apple.com/ht212817.

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url:https://nvd.nist.gov/vuln/detail/cve-2020-29622

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url:https://support.apple.com/ht212805.

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30783

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30713

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30858

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30853

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url:https://nvd.nist.gov/vuln/detail/cve-2021-30845

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url:https://support.apple.com/ht212804.

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sources: VULHUB: VHN-390580 // VULMON: CVE-2021-30847 // PACKETSTORM: 164693 // PACKETSTORM: 164692 // PACKETSTORM: 164256 // PACKETSTORM: 164249 // PACKETSTORM: 164246 // PACKETSTORM: 164234 // CNNVD: CNNVD-202109-1274 // JVNDB: JVNDB-2021-014008 // NVD: CVE-2021-30847

CREDITS

Apple

Trust: 0.6

sources: PACKETSTORM: 164693 // PACKETSTORM: 164692 // PACKETSTORM: 164256 // PACKETSTORM: 164249 // PACKETSTORM: 164246 // PACKETSTORM: 164234

SOURCES

db:VULHUBid:VHN-390580
db:VULMONid:CVE-2021-30847
db:PACKETSTORMid:164693
db:PACKETSTORMid:164692
db:PACKETSTORMid:164256
db:PACKETSTORMid:164249
db:PACKETSTORMid:164246
db:PACKETSTORMid:164234
db:CNNVDid:CNNVD-202109-1274
db:JVNDBid:JVNDB-2021-014008
db:NVDid:CVE-2021-30847

LAST UPDATE DATE

2026-02-06T20:47:29.997000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-390580date:2021-11-30T00:00:00
db:CNNVDid:CNNVD-202109-1274date:2021-11-11T00:00:00
db:JVNDBid:JVNDB-2021-014008date:2022-09-30T08:05:00
db:NVDid:CVE-2021-30847date:2021-11-30T20:20:21.963

SOURCES RELEASE DATE

db:VULHUBid:VHN-390580date:2021-10-19T00:00:00
db:PACKETSTORMid:164693date:2021-10-28T14:58:57
db:PACKETSTORMid:164692date:2021-10-28T14:58:43
db:PACKETSTORMid:164256date:2021-09-22T16:40:42
db:PACKETSTORMid:164249date:2021-09-22T16:35:10
db:PACKETSTORMid:164246date:2021-09-22T16:33:18
db:PACKETSTORMid:164234date:2021-09-22T16:22:32
db:CNNVDid:CNNVD-202109-1274date:2021-09-20T00:00:00
db:JVNDBid:JVNDB-2021-014008date:2022-09-30T00:00:00
db:NVDid:CVE-2021-30847date:2021-10-19T14:15:09.663