var-202109-0369
Vulnerability from variot
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary code execution. plural Apple The product contains an out-of-bounds read vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the GetFDIndex function in libFontParser. Crafted data in an OTF font can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. 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-2021-04-26-6 tvOS 14.5
tvOS 14.5 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212323.
AppleMobileFileIntegrity Available for: Apple TV 4K and Apple TV HD 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
Assets Available for: Apple TV 4K and Apple TV HD Impact: A local user may be able to create or modify privileged files Description: A logic issue was addressed with improved restrictions. CVE-2021-1836: an anonymous researcher
Audio Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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
CoreText Available for: Apple TV 4K and Apple TV HD 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
FontParser Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30653: Ye Zhang of Baidu Security CVE-2021-1843: Ye Zhang of Baidu Security
ImageIO Available for: Apple TV 4K and Apple TV HD 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
iTunes Store Available for: Apple TV 4K and Apple TV HD Impact: An attacker with JavaScript execution may be able to execute arbitrary code Description: A use after free issue was addressed with improved memory management. CVE-2021-1864: CodeColorist of Ant-Financial LightYear Labs
Kernel Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A buffer overflow was addressed with improved bounds checking. CVE-2021-1816: Tielei Wang of Pangu Lab
Kernel Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A logic issue was addressed with improved state management. CVE-2021-1851: @0xalsr
Kernel Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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
MobileInstallation Available for: Apple TV 4K and Apple TV HD Impact: A local user may be able to modify protected parts of the file system Description: A logic issue was addressed with improved restrictions. CVE-2021-1822: Bruno Virlet of The Grizzly Labs
Preferences Available for: Apple TV 4K and Apple TV HD 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)
Tailspin Available for: Apple TV 4K and Apple TV HD 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
WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved validation. CVE-2021-1844: Clément Lecigne of Google’s Threat Analysis Group, Alison Huffman of Microsoft Browser Vulnerability Research
WebKit Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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. Description: A use after free issue was addressed with improved memory management. CVE-2021-30661: yangkang(@dnpushme) of 360 ATA
Installation note:
Apple TV will periodically check for software updates. Alternatively, you may manually check for software updates by selecting "Settings -> System -> Software Update -> Update Software."
To check the current version of software, select "Settings -> General -> About."
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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"data": "An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary code execution. plural Apple The product contains an out-of-bounds read vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the GetFDIndex function in libFontParser. Crafted data in an OTF font can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. 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-2021-04-26-6 tvOS 14.5\n\ntvOS 14.5 addresses the following issues. \nInformation about the security content is also available at\nhttps://support.apple.com/HT212323. \n\nAppleMobileFileIntegrity\nAvailable for: Apple TV 4K and Apple TV HD\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\nAssets\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A local user may be able to create or modify privileged files\nDescription: A logic issue was addressed with improved restrictions. \nCVE-2021-1836: an anonymous researcher\n\nAudio\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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\nCoreText\nAvailable for: Apple TV 4K and Apple TV HD\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\nFontParser\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30653: Ye Zhang of Baidu Security\nCVE-2021-1843: Ye Zhang of Baidu Security\n\nImageIO\nAvailable for: Apple TV 4K and Apple TV HD\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\niTunes Store\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: An attacker with JavaScript execution may be able to execute\narbitrary code\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2021-1864: CodeColorist of Ant-Financial LightYear Labs\n\nKernel\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\nImpact: A malicious application may be able to execute arbitrary code\nwith kernel privileges\nDescription: A buffer overflow was addressed with improved bounds\nchecking. \nCVE-2021-1816: Tielei Wang of Pangu Lab\n\nKernel\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1851: @0xalsr\n\nKernel\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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\nMobileInstallation\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A local user may be able to modify protected parts of the\nfile system\nDescription: A logic issue was addressed with improved restrictions. \nCVE-2021-1822: Bruno Virlet of The Grizzly Labs\n\nPreferences\nAvailable for: Apple TV 4K and Apple TV HD\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\nTailspin\nAvailable for: Apple TV 4K and Apple TV HD\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\nWebKit\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2021-1844: Cl\u00e9ment Lecigne of Google\u2019s Threat Analysis Group,\nAlison Huffman of Microsoft Browser Vulnerability Research\n\nWebKit\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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. \nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2021-30661: yangkang(@dnpushme) of 360 ATA\n\nInstallation note:\n\nApple TV will periodically check for software updates. Alternatively,\nyou may manually check for software updates by selecting\n\"Settings -\u003e System -\u003e Software Update -\u003e Update Software.\"\n\nTo check the current version of software, select\n\"Settings -\u003e General -\u003e About.\"\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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\nnzTZlUAupV+ZCnrq0VbzskIE67Li6lAR+Bm7LmK3aRvMZaxfcn0=\n=iii4\n-----END PGP SIGNATURE-----\n\n\n\n",
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.