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ID

VAR-202002-1169


CVE

CVE-2020-3843


TITLE

macOS Catalina Memory Corruption Vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-002308

DESCRIPTION

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory. Apple macOS Catalina is a set of dedicated operating systems developed by Apple for Mac computers. Wi-Fi is one of the wireless Internet access components. A buffer error vulnerability exists in the Wi-Fi component of Apple macOS Catalina versions prior to 10.15.3. Alternatively, on your watch, select "My Watch > General > About". -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra macOS Catalina 10.15.3, Security Update 2020-001 Mojave, and Security Update 2020-001 High Sierra are now available and address the following: AnnotationKit Available for: macOS Catalina 10.15.2 Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-3877: an anonymous researcher working with Trend Micro's Zero Day Initiative apache_mod_php Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: Multiple issues in PHP Description: Multiple issues were addressed by updating to PHP version 7.3.11. CVE-2020-3857: Zhuo Liang of Qihoo 360 Vulcan Team autofs Available for: macOS Catalina 10.15.2 Impact: Searching for and opening a file from an attacker controlled NFS mount may bypass Gatekeeper Description: This was addressed with additional checks by Gatekeeper on files mounted through a network share. CVE-2020-3848: Jianjun Dai of Qihoo 360 Alpha Lab CVE-2020-3849: Jianjun Dai of Qihoo 360 Alpha Lab CVE-2020-3850: Jianjun Dai of Qihoo 360 Alpha Lab CoreBluetooth Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6 Impact: A remote attacker may be able to leak memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-3847: Jianjun Dai of Qihoo 360 Alpha Lab Crash Reporter Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: A malicious application may be able to access restricted files Description: A validation issue existed in the handling of symlinks. CVE-2020-3835: Csaba Fitzl (@theevilbit) Image Processing Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: Viewing a maliciously crafted JPEG file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2020-3827: Samuel Groß of Google Project Zero ImageIO Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-3826: Samuel Groß of Google Project Zero CVE-2020-3870 CVE-2020-3878: Samuel Groß of Google Project Zero Intel Graphics Driver Available for: macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2020-3845: Zhuo Liang of Qihoo 360 Vulcan Team IOAcceleratorFamily Available for: macOS Catalina 10.15.2 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2020-3837: Brandon Azad of Google Project Zero IPSec Available for: macOS Catalina 10.15.2 Impact: Loading a maliciously crafted racoon configuration file may lead to arbitrary code execution Description: An off by one issue existed in the handling of racoon configuration files. CVE-2020-3840: @littlelailo Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2020-3875: Brandon Azad of Google Project Zero Kernel Available for: macOS Catalina 10.15.2 Impact: An application may be able to read restricted memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2020-3872: Haakon Garseg Mørk of Cognite and Cim Stordal of Cognite Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: A malicious application may be able to execute arbitrary code with system privileges Description: A type confusion issue was addressed with improved memory handling. CVE-2020-3853: Brandon Azad of Google Project Zero Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: A malicious application may be able to determine kernel memory layout Description: An access issue was addressed with improved memory management. CVE-2020-3836: Brandon Azad of Google Project Zero Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2020-3842: Ned Williamson working with Google Project Zero CVE-2020-3871: Corellium libxml2 Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6 Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution Description: A buffer overflow was addressed with improved size validation. CVE-2020-3856: Ian Beer of Google Project Zero libxpc Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: An application may be able to gain elevated privileges Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-3829: Ian Beer of Google Project Zero PackageKit Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: A malicious application may be able to overwrite arbitrary files Description: A validation issue existed in the handling of symlinks. CVE-2020-3854: Jakob Rieck (@0xdead10cc) and Maximilian Blochberger of the Security in Distributed Systems Group of University of Hamburg sudo Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: Certain configurations may allow a local attacker to execute arbitrary code Description: A buffer overflow issue was addressed with improved memory handling. CVE-2019-18634: Apple System Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6 Impact: A malicious application may be able to overwrite arbitrary files Description: An access issue was addressed with improved access restrictions. CVE-2020-3843: Ian Beer of Google Project Zero wifivelocityd Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2 Impact: An application may be able to execute arbitrary code with system privileges Description: The issue was addressed with improved permissions logic. CVE-2020-3838: Dayton Pidhirney (@_watbulb) Additional recognition Photos Storage We would like to acknowledge Salman Husain of UC Berkeley for their assistance. Installation note: macOS Catalina 10.15.3, Security Update 2020-001 Mojave, and Security Update 2020-001 High Sierra 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----- iQIzBAEBCAAdFiEEM5FaaFRjww9EJgvRBz4uGe3y0M0FAl4wsjUACgkQBz4uGe3y 0M1CeQ//ZJ/ZlrPF1P8nFvUy5XnOEgSt5U3W3klWT1x7B7s5NOQQkh+Iw02+dkYZ hErXRA1Awvzw4SpOOoG1HiElt2qz1+N8NaKgg4+Evk1CPB3KaX9g8l+PBFSKyVqU GQUSlsPB2GXky92moq0TtFO9VCwsPbQfj/618RzUn/CSF5ifNI+fMdWAfrndZSRv yg6XndljJx7Ro1OeQI794Aa1KdxdErbqnai+i++gGAiKG8zg89HLxhwaEje0u59M 35iAp9HAksZwOD/YOWkhiksXjS/89qtyt2z3yrpSUh8s1f86NumMre6D2C9kwY1c 8XlaCN/KE8BGMXzg+daMibpeaIoweeObfw6tT8QlF2OtxKtnvm55C1nIIYKlVqen GS11EkWweC9ZAEepVaBML95JEmaSin13oTvRg2s+DaiLE/RsRxz09qLqdyj1sbdf 2Gyl9xnTPjcDuhvbaGZl/uIEHIkgpLnNrs3bVkUOQwJZU8hpFcE1jwgGwNo8Nkwz TCAi0s4+q7csgZuTOlHroXTteFm+UQcV4Sw7YCZ2Z3kNDkEJpDDf8PEWGrGyJa8p iZJ4FqP0D9pv0N161V6f6xZ6QZW379tZfAeEHeoIE6lAfDN7BnENsuph10dvK9IT 1HlUvSj57BkM6b4BcoT9WjyFIWNp3T7ySJ+K15PHXx707SX1R9w= =toYN -----END PGP SIGNATURE-----= . CVE-2020-3843: Ian Beer of Google Project Zero Installation note: This update is available through iTunes and Software Update on your iOS device, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an Internet connection and have installed the latest version of iTunes from https://www.apple.com/itunes/ iTunes and Software Update on the device will automatically check Apple's update server on its weekly schedule. When an update is detected, it is downloaded and the option to be installed is presented to the user when the iOS device is docked. We recommend applying the update immediately if possible. Selecting Don't Install will present the option the next time you connect your iOS device. The automatic update process may take up to a week depending on the day that iTunes or the device checks for updates. You may manually obtain the update via the Check for Updates button within iTunes, or the Software Update on your device. To check that the iPhone, iPod touch, or iPad has been updated: * Navigate to Settings * Select General * Select About. The version after applying this update will be "iOS 12.4.7". -----BEGIN PGP SIGNATURE----- Version: BCPG v1.64 iQIcBAEDCAAGBQJezV7QAAoJEAc+Lhnt8tDNuPEQAJnAwO9sbgdfm+qVVOLipUKF 6Vxmy9609KqDujTnVhylCRKTsieK3sIuHo9UIdJ63A2MCO9SL4PamKH4z63GnZTF Tx2DVv4UjfhiyqbbhOcCZVUUw80Z63L9nwcmtN8+VcFSCkOr3WHLTrTvd39HgaB7 Tehasa2NkN3E3c/Zmm2aQOIMrKmomMMF1eFn6eEMrlpSKNgqgzfo8QUhWEHiJsS/ RaFPRkZRKKmw+Y1MweCukqSi8bOzKNKBFahDmD7noHCtkHy0bFL85BFiist6cCX5 VxD3unfexYYmBwt466I++y49HVG6JrNyIsMEg6FayR8wrbewszDVh1YarHKwaZlI JrZpmzJwTed1QGOoQ6TBiz1uMjkcc38ae0vkl/UV79c30mI2mdq1hj/FgnrXbF4C HpoTDyDcN7bharGmVBWiPpZfaNGEZzjzg9ATn4oHnihMI2oNPJyiNsezNcczvOot hqJlW4Z78L+VucXZsaRNDciilMBKpWRTxzIvfZwMiEOCPU5uy4T0ou78XH/x2xju 4rSAbG+R9mx8VB2G9CHODyyR0xIQ1y2NiqUBDpP6O3pehBHlMaa21q6k/gAe05a5 lO+NH75EI0/uQDfJSrCj2WbD9riuJsQToU+KY7QOXk2iotY+LC/79gGo2G9cYVAN k7FzJH9C4lVimiOjFauD =h/Qh -----END PGP SIGNATURE-----

Trust: 1.98

sources: NVD: CVE-2020-3843 // JVNDB: JVNDB-2020-002308 // VULHUB: VHN-181968 // PACKETSTORM: 157875 // PACKETSTORM: 156131 // PACKETSTORM: 157873

AFFECTED PRODUCTS

vendor:applemodel:iphone osscope:ltversion:12.4.7

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vendor:applemodel:watchosscope:ltversion:5.3.7

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vendor:applemodel:mac os xscope:eqversion:10.13.6

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vendor:applemodel:mac os xscope:eqversion:10.14.6

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vendor:applemodel:mac os xscope:eqversion:10.15.2

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sources: JVNDB: JVNDB-2020-002308 // NVD: CVE-2020-3843

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-3843
value: HIGH

Trust: 1.0

NVD: JVNDB-2020-002308
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202001-1419
value: HIGH

Trust: 0.6

VULHUB: VHN-181968
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2020-3843
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

NVD: JVNDB-2020-002308
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

VULHUB: VHN-181968
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2020-3843
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: JVNDB-2020-002308
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
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-181968 // JVNDB: JVNDB-2020-002308 // CNNVD: CNNVD-202001-1419 // NVD: CVE-2020-3843

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.1

problemtype:CWE-119

Trust: 0.9

sources: VULHUB: VHN-181968 // JVNDB: JVNDB-2020-002308 // NVD: CVE-2020-3843

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202001-1419

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202001-1419

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2020-002308

PATCH
title:HT210919url:https://support.apple.com/en-us/HT210919
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title:HT210919url:https://support.apple.com/ja-jp/HT210919
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title:Apple macOS Catalina Wi-Fi Fix for component buffer error vulnerabilityurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=110876
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sources:
            
            
            JVNDB: JVNDB-2020-002308 // 
            
            
            
            CNNVD: CNNVD-202001-1419

EXTERNAL IDS
db:NVDid:CVE-2020-3843
Trust: 2.8
db:PACKETSTORMid:162119
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db:PACKETSTORMid:157875
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db:JVNid:JVNVU95678717
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db:JVNDBid:JVNDB-2020-002308
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db:CNNVDid:CNNVD-202001-1419
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db:PACKETSTORMid:158225
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db:PACKETSTORMid:156664
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db:PACKETSTORMid:156131
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db:AUSCERTid:ESB-2020.1862
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db:AUSCERTid:ESB-2020.0351
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db:NSFOCUSid:49311
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db:PACKETSTORMid:157873
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db:VULHUBid:VHN-181968
Trust: 0.1
sources:
            
            
            VULHUB: VHN-181968 // 
            
            
            
            JVNDB: JVNDB-2020-002308 // 
            
            
            
            PACKETSTORM: 157875 // 
            
            
            
            PACKETSTORM: 156131 // 
            
            
            
            PACKETSTORM: 157873 // 
            
            
            
            CNNVD: CNNVD-202001-1419 // 
            
            
            
            NVD: CVE-2020-3843

REFERENCES
url:http://packetstormsecurity.com/files/162119/ios-macos-radio-proximity-kernel-memory-corruption.html
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url:https://support.apple.com/ht211169
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url:https://support.apple.com/ht211176
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3843
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url:https://packetstormsecurity.com/files/156664/ios-macos-awdl-heap-corruption-bounds-checking.html
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url:https://support.apple.com/kb/ht211169
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-3843
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url:https://jvn.jp/vu/jvnvu95678717/
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url:https://support.apple.com/ht210919
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url:http://seclists.org/fulldisclosure/2020/may/50
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url:http://seclists.org/fulldisclosure/2020/may/48
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url:https://support.apple.com/kb/ht211176
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url:https://support.apple.com/en-us/ht210919
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url:https://vigilance.fr/vulnerability/apple-macos-multiple-vulnerabilities-31449
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url:https://packetstormsecurity.com/files/156131/apple-security-advisory-2020-1-28-2.html
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url:https://packetstormsecurity.com/files/158225/ios-macos-wifi-proximity-kernel-double-free.html
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url:https://www.auscert.org.au/bulletins/esb-2020.0351/
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url:https://packetstormsecurity.com/files/157875/apple-security-advisory-2020-05-26-6.html
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url:https://support.apple.com/en-us/ht211169
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url:https://www.auscert.org.au/bulletins/esb-2020.1862/
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url:http://www.nsfocus.net/vulndb/49311
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url:https://nvd.nist.gov/vuln/detail/cve-2020-9819
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url:https://support.apple.com/kb/ht204641
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3826
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url:https://support.apple.com/kb/ht201222
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3839
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3849
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url:https://nvd.nist.gov/vuln/detail/cve-2019-11043
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3846
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3835
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3842
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3837
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3845
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3870
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3827
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url:https://support.apple.com/downloads/
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3848
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3856
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url:https://nvd.nist.gov/vuln/detail/cve-2019-18634
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3866
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3857
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3840
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url:https://www.apple.com/support/security/pgp/
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3871
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3855
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3850
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3854
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3853
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3847
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3838
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3830
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3836
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url:https://nvd.nist.gov/vuln/detail/cve-2020-3829
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url:https://www.apple.com/itunes/
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url:https://nvd.nist.gov/vuln/detail/cve-2020-9818
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sources:
            
            
            VULHUB: VHN-181968 // 
            
            
            
            JVNDB: JVNDB-2020-002308 // 
            
            
            
            PACKETSTORM: 157875 // 
            
            
            
            PACKETSTORM: 156131 // 
            
            
            
            PACKETSTORM: 157873 // 
            
            
            
            CNNVD: CNNVD-202001-1419 // 
            
            
            
            NVD: CVE-2020-3843

CREDITS
Google Security Research, ianbeer,Apple,Ian Beer of Google Project Zero
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202001-1419

SOURCES
db:VULHUBid:VHN-181968
db:JVNDBid:JVNDB-2020-002308
db:PACKETSTORMid:157875
db:PACKETSTORMid:156131
db:PACKETSTORMid:157873
db:CNNVDid:CNNVD-202001-1419
db:NVDid:CVE-2020-3843

LAST UPDATE DATE
2024-11-23T21:07:40.865000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-181968date:2022-05-31T00:00:00
db:JVNDBid:JVNDB-2020-002308date:2020-03-11T00:00:00
db:CNNVDid:CNNVD-202001-1419date:2022-06-01T00:00:00
db:NVDid:CVE-2020-3843date:2024-11-21T05:31:49.530

SOURCES RELEASE DATE
db:VULHUBid:VHN-181968date:2020-02-27T00:00:00
db:JVNDBid:JVNDB-2020-002308date:2020-03-11T00:00:00
db:PACKETSTORMid:157875date:2020-05-29T19:02:39
db:PACKETSTORMid:156131date:2020-01-29T17:17:36
db:PACKETSTORMid:157873date:2020-05-29T19:01:13
db:CNNVDid:CNNVD-202001-1419date:2020-01-30T00:00:00
db:NVDid:CVE-2020-3843date:2020-02-27T21:15:17.070