var-202109-0353
Vulnerability from variot
The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
APPLE-SA-2021-04-26-2 macOS Big Sur 11.3
macOS Big Sur 11.3 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212325.
APFS Available for: macOS Big Sur Impact: A local attacker may be able to elevate their privileges Description: A logic issue was addressed with improved state management. CVE-2021-1853: Gary Nield of ECSC Group plc and Tim Michaud(@TimGMichaud) of Zoom Video Communications
AppleMobileFileIntegrity Available for: macOS Big Sur Impact: A malicious application may be able to bypass Privacy preferences Description: An issue in code signature validation was addressed with improved checks. CVE-2021-1849: Siguza
Apple Neural Engine 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-2021-1867: Zuozhi Fan (@pattern_F_) and Wish Wu(吴潍浠) of Ant Group Tianqiong Security Lab
Archive Utility Available for: macOS Big Sur Impact: A malicious application may bypass Gatekeeper checks Description: A logic issue was addressed with improved state management. CVE-2021-1810: an anonymous researcher
Audio Available for: macOS Big Sur Impact: An application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1808: JunDong Xie of Ant Security Light-Year Lab
CFNetwork Available for: macOS Big Sur Impact: Processing maliciously crafted web content may disclose sensitive user information Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1857: an anonymous researcher
CoreAudio Available for: macOS Big Sur Impact: Processing a maliciously crafted audio file may disclose restricted memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1846: JunDong Xie of Ant Security Light-Year Lab
CoreAudio Available for: macOS Big Sur Impact: A malicious application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1809: JunDong Xie of Ant Security Light-Year Lab
CoreFoundation Available for: macOS Big Sur Impact: A malicious application may be able to leak sensitive user information Description: A validation issue was addressed with improved logic. CVE-2021-30659: Thijs Alkemade of Computest
CoreGraphics Available for: macOS Big Sur Impact: Opening a maliciously crafted file may lead to unexpected application termination or arbitrary code execution Description: A memory corruption issue was addressed with improved validation. CVE-2021-1847: Xuwei Liu of Purdue University
CoreText Available for: macOS Big Sur Impact: Processing a maliciously crafted font may result in the disclosure of process memory Description: A logic issue was addressed with improved state management. CVE-2021-1811: Xingwei Lin of Ant Security Light-Year Lab
curl Available for: macOS Big Sur Impact: An attacker may provide a fraudulent OCSP response that would appear valid Description: This issue was addressed with improved checks. CVE-2020-8286: an anonymous researcher
curl Available for: macOS Big Sur Impact: A remote attacker may be able to cause a denial of service Description: A buffer overflow was addressed with improved input validation. CVE-2020-8285: xnynx
DiskArbitration Available for: macOS Big Sur Impact: A malicious application may be able to modify protected parts of the file system Description: A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. CVE-2021-1784: Mikko Kenttälä (@Turmio_) of SensorFu, Csaba Fitzl (@theevilbit) of Offensive Security, and an anonymous researcher
FaceTime Available for: macOS Big Sur Impact: Muting a CallKit call while ringing may not result in mute being enabled Description: A logic issue was addressed with improved state management. CVE-2021-1872: Siraj Zaneer of Facebook
FontParser Available for: macOS Big Sur Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1881: an anonymous researcher, Xingwei Lin of Ant Security Light-Year Lab, Mickey Jin of Trend Micro, and Hou JingYi (@hjy79425575) of Qihoo 360
Foundation Available for: macOS Big Sur Impact: An application may be able to gain elevated privileges Description: A memory corruption issue was addressed with improved validation. CVE-2021-1882: Gabe Kirkpatrick (@gabe_k)
Foundation Available for: macOS Big Sur Impact: A malicious application may be able to gain root privileges Description: A validation issue was addressed with improved logic. CVE-2021-1813: Cees Elzinga
Heimdal Available for: macOS Big Sur Impact: Processing maliciously crafted server messages may lead to heap corruption Description: This issue was addressed with improved checks. CVE-2021-1883: Gabe Kirkpatrick (@gabe_k)
Heimdal Available for: macOS Big Sur Impact: A remote attacker may be able to cause a denial of service Description: A race condition was addressed with improved locking. CVE-2021-1884: Gabe Kirkpatrick (@gabe_k)
ImageIO Available for: macOS Big Sur Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-1880: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30653: Ye Zhang of Baidu Security CVE-2021-1814: Ye Zhang of Baidu Security, Mickey Jin & Qi Sun of Trend Micro, and Xingwei Lin of Ant Security Light-Year Lab CVE-2021-1843: Ye Zhang of Baidu Security
ImageIO Available for: macOS Big Sur Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1885: CFF of Topsec Alpha Team
ImageIO Available for: macOS Big Sur Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-1858: Mickey Jin of Trend Micro
Installer Available for: macOS Big Sur Impact: A malicious application may bypass Gatekeeper checks Description: This issue was addressed with improved handling of file metadata. CVE-2021-30658: Wojciech Reguła (@_r3ggi) of SecuRing
Intel Graphics Driver Available for: macOS Big Sur Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-1841: Jack Dates of RET2 Systems, Inc. CVE-2021-1834: ABC Research s.r.o. working with Trend Micro Zero Day Initiative
Kernel Available for: macOS Big Sur Impact: A malicious application may be able to disclose kernel memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1860: @0xalsr
Kernel 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 validation. CVE-2021-1840: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab
Kernel Available for: macOS Big Sur Impact: An application may be able to execute arbitrary code with kernel privileges Description: A logic issue was addressed with improved state management. CVE-2021-1832: an anonymous researcher
Kernel Available for: macOS Big Sur Impact: A malicious application may be able to disclose kernel memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-30660: Alex Plaskett
libxpc Available for: macOS Big Sur Impact: A malicious application may be able to gain root privileges Description: A race condition was addressed with additional validation. CVE-2021-30652: James Hutchins
libxslt Available for: macOS Big Sur Impact: Processing a maliciously crafted file may lead to heap corruption Description: A double free issue was addressed with improved memory management. CVE-2021-1875: Found by OSS-Fuzz
Login Window Available for: macOS Big Sur Impact: A malicious application with root privileges may be able to access private information Description: This issue was addressed with improved entitlements. CVE-2021-1824: Wojciech Reguła (@_r3ggi) of SecuRing
Notes Available for: macOS Big Sur Impact: Locked Notes content may have been unexpectedly unlocked Description: A logic issue was addressed with improved state management. CVE-2021-1859: Syed Ali Shuja (@SyedAliShuja) of Colour King Pvt. Ltd
NSRemoteView Available for: macOS Big Sur Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2021-1876: Matthew Denton of Google Chrome
Preferences Available for: macOS Big Sur Impact: A local user may be able to modify protected parts of the file system Description: A parsing issue in the handling of directory paths was addressed with improved path validation. CVE-2021-1815: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) CVE-2021-1739: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) CVE-2021-1740: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com)
Safari Available for: macOS Big Sur Impact: A malicious website may be able to track users by setting state in a cache Description: An issue existed in determining cache occupancy. CVE-2021-1861: Konstantinos Solomos of University of Illinois at Chicago
Safari Available for: macOS Big Sur Impact: A malicious website may be able to force unnecessary network connections to fetch its favicon Description: A logic issue was addressed with improved state management. CVE-2021-1855: Håvard Mikkelsen Ottestad of HASMAC AS
SampleAnalysis Available for: macOS Big Sur Impact: A local attacker may be able to elevate their privileges Description: A logic issue was addressed with improved state management. CVE-2021-1868: Tim Michaud of Zoom Communications
smbx Available for: macOS Big Sur Impact: An attacker in a privileged network position may be able to leak sensitive user information Description: An integer overflow was addressed with improved input validation. CVE-2021-1878: Aleksandar Nikolic of Cisco Talos (talosintelligence.com)
System Preferences Available for: macOS Big Sur Impact: A malicious application may bypass Gatekeeper checks Description: A logic issue was addressed with improved state management. CVE-2021-30657: an anonymous researcher
tcpdump Available for: macOS Big Sur Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2020-8037: an anonymous researcher
Time Machine Available for: macOS Big Sur Impact: A local attacker may be able to elevate their privileges Description: The issue was addressed with improved permissions logic. CVE-2021-1839: Tim Michaud(@TimGMichaud) of Zoom Video Communications and Gary Nield of ECSC Group plc
WebKit Available for: macOS Big Sur Impact: Processing maliciously crafted web content may lead to a cross site scripting attack Description: An input validation issue was addressed with improved input validation. CVE-2021-1825: Alex Camboe of Aon’s Cyber Solutions
WebKit Available for: macOS Big Sur Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2021-1817: an anonymous researcher
WebKit Available for: macOS Big Sur Impact: Processing maliciously crafted web content may lead to universal cross site scripting Description: A logic issue was addressed with improved restrictions. CVE-2021-1826: an anonymous researcher
WebKit Available for: macOS Big Sur Impact: Processing maliciously crafted web content may result in the disclosure of process memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1820: an anonymous researcher
WebKit Storage 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-2021-30661: yangkang(@dnpushme) of 360 ATA
WebRTC Available for: macOS Big Sur Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory Description: A use after free issue was addressed with improved memory management. CVE-2020-7463: Megan2013678
Wi-Fi Available for: macOS Big Sur Impact: An application may be able to cause unexpected system termination or write kernel memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1828: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab
Wi-Fi Available for: macOS Big Sur Impact: An application may be able to execute arbitrary code with kernel privileges Description: A type confusion issue was addressed with improved state handling. CVE-2021-1829: Tielei Wang of Pangu Lab
Wi-Fi Available for: macOS Big Sur Impact: An application may be able to execute arbitrary code with system privileges Description: The issue was addressed with improved permissions logic. CVE-2021-30655: Gary Nield of ECSC Group plc and Tim Michaud(@TimGMichaud) of Zoom Video Communications and Wojciech Reguła (@_r3ggi) of SecuRing
Windows Server Available for: macOS Big Sur Impact: A malicious application may be able to unexpectedly leak a user's credentials from secure text fields Description: An API issue in Accessibility TCC permissions was addressed with improved state management. CVE-2021-1873: an anonymous researcher
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/
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Pillow is a Python-based image processing library. \nThere is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-04-26-2 macOS Big Sur 11.3\n\nmacOS Big Sur 11.3 addresses the following issues. \nInformation about the security content is also available at\nhttps://support.apple.com/HT212325. \n\nAPFS\nAvailable for: macOS Big Sur\nImpact: A local attacker may be able to elevate their privileges\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1853: Gary Nield of ECSC Group plc and Tim\nMichaud(@TimGMichaud) of Zoom Video Communications\n\nAppleMobileFileIntegrity\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to bypass Privacy\npreferences\nDescription: An issue in code signature validation was addressed with\nimproved checks. \nCVE-2021-1849: Siguza\n\nApple Neural Engine\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to execute arbitrary code\nwith kernel privileges\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1867: Zuozhi Fan (@pattern_F_) and Wish Wu(\u5434\u6f4d\u6d60) of Ant Group\nTianqiong Security Lab\n\nArchive Utility\nAvailable for: macOS Big Sur\nImpact: A malicious application may bypass Gatekeeper checks\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1810: an anonymous researcher\n\nAudio\nAvailable for: macOS Big Sur\nImpact: An application may be able to read restricted memory\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1808: JunDong Xie of Ant Security Light-Year Lab\n\nCFNetwork\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may disclose\nsensitive user information\nDescription: A memory initialization issue was addressed with\nimproved memory handling. \nCVE-2021-1857: an anonymous researcher\n\nCoreAudio\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted audio file may disclose\nrestricted memory\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1846: JunDong Xie of Ant Security Light-Year Lab\n\nCoreAudio\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to read restricted memory\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1809: JunDong Xie of Ant Security Light-Year Lab\n\nCoreFoundation\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to leak sensitive user\ninformation\nDescription: A validation issue was addressed with improved logic. \nCVE-2021-30659: Thijs Alkemade of Computest\n\nCoreGraphics\nAvailable for: macOS Big Sur\nImpact: Opening a maliciously crafted file may lead to unexpected\napplication termination or arbitrary code execution\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1847: Xuwei Liu of Purdue University\n\nCoreText\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted font may result in the\ndisclosure of process memory\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1811: Xingwei Lin of Ant Security Light-Year Lab\n\ncurl\nAvailable for: macOS Big Sur\nImpact: An attacker may provide a fraudulent OCSP response that would\nappear valid\nDescription: This issue was addressed with improved checks. \nCVE-2020-8286: an anonymous researcher\n\ncurl\nAvailable for: macOS Big Sur\nImpact: A remote attacker may be able to cause a denial of service\nDescription: A buffer overflow was addressed with improved input\nvalidation. \nCVE-2020-8285: xnynx\n\nDiskArbitration\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to modify protected parts\nof the file system\nDescription: A permissions issue existed in DiskArbitration. This was\naddressed with additional ownership checks. \nCVE-2021-1784: Mikko Kentt\u00e4l\u00e4 (@Turmio_) of SensorFu, Csaba Fitzl\n(@theevilbit) of Offensive Security, and an anonymous researcher\n\nFaceTime\nAvailable for: macOS Big Sur\nImpact: Muting a CallKit call while ringing may not result in mute\nbeing enabled\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1872: Siraj Zaneer of Facebook\n\nFontParser\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted font file may lead to\narbitrary code execution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1881: an anonymous researcher, Xingwei Lin of Ant Security\nLight-Year Lab, Mickey Jin of Trend Micro, and Hou JingYi\n(@hjy79425575) of Qihoo 360\n\nFoundation\nAvailable for: macOS Big Sur\nImpact: An application may be able to gain elevated privileges\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1882: Gabe Kirkpatrick (@gabe_k)\n\nFoundation\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to gain root privileges\nDescription: A validation issue was addressed with improved logic. \nCVE-2021-1813: Cees Elzinga\n\nHeimdal\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted server messages may lead to\nheap corruption\nDescription: This issue was addressed with improved checks. \nCVE-2021-1883: Gabe Kirkpatrick (@gabe_k)\n\nHeimdal\nAvailable for: macOS Big Sur\nImpact: A remote attacker may be able to cause a denial of service\nDescription: A race condition was addressed with improved locking. \nCVE-2021-1884: Gabe Kirkpatrick (@gabe_k)\n\nImageIO\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-1880: Xingwei Lin of Ant Security Light-Year Lab\nCVE-2021-30653: Ye Zhang of Baidu Security\nCVE-2021-1814: Ye Zhang of Baidu Security, Mickey Jin \u0026 Qi Sun of\nTrend Micro, and Xingwei Lin of Ant Security Light-Year Lab\nCVE-2021-1843: Ye Zhang of Baidu Security\n\nImageIO\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1885: CFF of Topsec Alpha Team\n\nImageIO\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds write issue was addressed with improved\nbounds checking. \nCVE-2021-1858: Mickey Jin of Trend Micro\n\nInstaller\nAvailable for: macOS Big Sur\nImpact: A malicious application may bypass Gatekeeper checks\nDescription: This issue was addressed with improved handling of file\nmetadata. \nCVE-2021-30658: Wojciech Regu\u0142a (@_r3ggi) of SecuRing\n\nIntel Graphics Driver\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to execute arbitrary code\nwith kernel privileges\nDescription: An out-of-bounds write issue was addressed with improved\nbounds checking. \nCVE-2021-1841: Jack Dates of RET2 Systems, Inc. \nCVE-2021-1834: ABC Research s.r.o. working with Trend Micro Zero Day\nInitiative\n\nKernel\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to disclose kernel memory\nDescription: A memory initialization issue was addressed with\nimproved memory handling. \nCVE-2021-1860: @0xalsr\n\nKernel\nAvailable for: macOS Big Sur\nImpact: A local attacker may be able to elevate their privileges\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1840: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong\nSecurity Lab\n\nKernel\nAvailable for: macOS Big Sur\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1832: an anonymous researcher\n\nKernel\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to disclose kernel memory\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-30660: Alex Plaskett\n\nlibxpc\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to gain root privileges\nDescription: A race condition was addressed with additional\nvalidation. \nCVE-2021-30652: James Hutchins\n\nlibxslt\nAvailable for: macOS Big Sur\nImpact: Processing a maliciously crafted file may lead to heap\ncorruption\nDescription: A double free issue was addressed with improved memory\nmanagement. \nCVE-2021-1875: Found by OSS-Fuzz\n\nLogin Window\nAvailable for: macOS Big Sur\nImpact: A malicious application with root privileges may be able to\naccess private information\nDescription: This issue was addressed with improved entitlements. \nCVE-2021-1824: Wojciech Regu\u0142a (@_r3ggi) of SecuRing\n\nNotes\nAvailable for: macOS Big Sur\nImpact: Locked Notes content may have been unexpectedly unlocked\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1859: Syed Ali Shuja (@SyedAliShuja) of Colour King Pvt. Ltd\n\nNSRemoteView\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2021-1876: Matthew Denton of Google Chrome\n\nPreferences\nAvailable for: macOS Big Sur\nImpact: A local user may be able to modify protected parts of the\nfile system\nDescription: A parsing issue in the handling of directory paths was\naddressed with improved path validation. \nCVE-2021-1815: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020)\nof Tencent Security Xuanwu Lab (xlab.tencent.com)\nCVE-2021-1739: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020)\nof Tencent Security Xuanwu Lab (xlab.tencent.com)\nCVE-2021-1740: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020)\nof Tencent Security Xuanwu Lab (xlab.tencent.com)\n\nSafari\nAvailable for: macOS Big Sur\nImpact: A malicious website may be able to track users by setting\nstate in a cache\nDescription: An issue existed in determining cache occupancy. \nCVE-2021-1861: Konstantinos Solomos of University of Illinois at\nChicago\n\nSafari\nAvailable for: macOS Big Sur\nImpact: A malicious website may be able to force unnecessary network\nconnections to fetch its favicon\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1855: H\u00e5vard Mikkelsen Ottestad of HASMAC AS\n\nSampleAnalysis\nAvailable for: macOS Big Sur\nImpact: A local attacker may be able to elevate their privileges\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1868: Tim Michaud of Zoom Communications\n\nsmbx\nAvailable for: macOS Big Sur\nImpact: An attacker in a privileged network position may be able to\nleak sensitive user information\nDescription: An integer overflow was addressed with improved input\nvalidation. \nCVE-2021-1878: Aleksandar Nikolic of Cisco Talos\n(talosintelligence.com)\n\nSystem Preferences\nAvailable for: macOS Big Sur\nImpact: A malicious application may bypass Gatekeeper checks\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30657: an anonymous researcher\n\ntcpdump\nAvailable for: macOS Big Sur\nImpact: A remote attacker may be able to cause a denial of service\nDescription: This issue was addressed with improved checks. \nCVE-2020-8037: an anonymous researcher\n\nTime Machine\nAvailable for: macOS Big Sur\nImpact: A local attacker may be able to elevate their privileges\nDescription: The issue was addressed with improved permissions logic. \nCVE-2021-1839: Tim Michaud(@TimGMichaud) of Zoom Video Communications\nand Gary Nield of ECSC Group plc\n\nWebKit\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may lead to a\ncross site scripting attack\nDescription: An input validation issue was addressed with improved\ninput validation. \nCVE-2021-1825: Alex Camboe of Aon\u2019s Cyber Solutions\n\nWebKit\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2021-1817: an anonymous researcher\n\nWebKit\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may lead to\nuniversal cross site scripting\nDescription: A logic issue was addressed with improved restrictions. \nCVE-2021-1826: an anonymous researcher\n\nWebKit\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may result in the\ndisclosure of process memory\nDescription: A memory initialization issue was addressed with\nimproved memory handling. \nCVE-2021-1820: an anonymous researcher\n\nWebKit Storage\nAvailable for: macOS Big Sur\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution. Apple is aware of a report that this issue\nmay have been actively exploited. \nCVE-2021-30661: yangkang(@dnpushme) of 360 ATA\n\nWebRTC\nAvailable for: macOS Big Sur\nImpact: A remote attacker may be able to cause unexpected system\ntermination or corrupt kernel memory\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2020-7463: Megan2013678\n\nWi-Fi\nAvailable for: macOS Big Sur\nImpact: An application may be able to cause unexpected system\ntermination or write kernel memory\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1828: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong\nSecurity Lab\n\nWi-Fi\nAvailable for: macOS Big Sur\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A type confusion issue was addressed with improved state\nhandling. \nCVE-2021-1829: Tielei Wang of Pangu Lab\n\nWi-Fi\nAvailable for: macOS Big Sur\nImpact: An application may be able to execute arbitrary code with\nsystem privileges\nDescription: The issue was addressed with improved permissions logic. \nCVE-2021-30655: Gary Nield of ECSC Group plc and Tim\nMichaud(@TimGMichaud) of Zoom Video Communications and Wojciech\nRegu\u0142a (@_r3ggi) of SecuRing\n\nWindows Server\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to unexpectedly leak a\nuser\u0027s credentials from secure text fields\nDescription: An API issue in Accessibility TCC permissions was\naddressed with improved state management. \nCVE-2021-1873: an anonymous researcher\n\nInstallation note:\n\nThis update may be obtained from the Mac App Store or\nApple\u0027s Software Downloads web site:\nhttps://support.apple.com/downloads/\n\nInformation will also be posted to the Apple Security Updates\nweb site: https://support.apple.com/kb/HT201222\n\nThis message is signed with Apple\u0027s Product Security PGP key,\nand details are available at:\nhttps://www.apple.com/support/security/pgp/\n\n-----BEGIN PGP SIGNATURE-----\n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\n0C3to6hKJNmTm56RgxwfVVOeVnsPF490s9LUYzO4ZUbaQHIuDfo=\n=9+Ju\n-----END PGP SIGNATURE-----\n\n\n",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.