var-202109-0348
Vulnerability from variot
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to execute arbitrary code with kernel privileges. This vulnerability allows local attackers to escalate privileges on affected installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the handling of IOCTL 0x30005 in the AppleIntelKBLGraphics kext. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. 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-2021-1867: 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-2021-1841: 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-2021-1851: @0xalsr
Kernel Available for: macOS Big Sur Impact: Copied files may not have the expected file permissions Description: The issue was addressed with improved permissions logic. 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-2021-1867: 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-2021-1841: 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-2021-1851: @0xalsr\n\nKernel\nAvailable for: macOS Big Sur\nImpact: Copied files may not have the expected file permissions\nDescription: The issue was addressed with improved permissions logic. \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.