-----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/ -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEbURczHs1TP07VIfuZcsbuWJ6jjAFAmCHQEkACgkQZcsbuWJ6 jjBQqhAAhT6igO2sBsZW1+ecMiDmF9RSncVFfF1tXYcbwY0VdGgmoEYFSegudN1V k3tdJEIRwT25R7K9359Mz5z/uHHBhZrABuv0tRiTfHobYTxoA/52Hx7WzqioW7EU lxJsEkBaRqOkuM5PjMa1he6KzlxDpIXmhgz0uZknO135S7JPUcTasRnDuzzk92WP b8Y62dlIoQ7w38g4xFA7Jg52GnTpYXxacA591ipaqW9Q3AaTCUfQSoRVRuGLZ2rn 4AacIgGnSgXPOCGURkrAxV9yPTxDC8Ug+ctV1pFBc0YKQZ/nugdQkMKxe2mzKKAd 4PaurX3+m5YwKJf5Ma+UUDZVPsSK4exPyKMsrKu0p+pfoeumPuAJydMCWJrELR1p xvTTxljkMs++snOAiNP9lzKJe6kuU1aqLmzLHqspP2QC8YXJH3VWG9fqcagVSb0R zqvXI4nicqYJc635OANJy24QS5yzvOovdeJYCiJQaWc7RauLTavOetYZ34kWjjYr 2X1Dj0UdeRK5LCrDMFvlIx6jCQpFbKwfg9D7+1IiPI6bNWNdVFCPsrd59iGdBpj8 NvAGs6afDOo68EK1LLRYcR0EigkcCFZ84oqY40nlfdc9ZN1xeZ3plfbpFDywv4s8 nzTZlUAupV+ZCnrq0VbzskIE67Li6lAR+Bm7LmK3aRvMZaxfcn0= =iii4 -----END PGP SIGNATURE----- _______________________________________________ Do not post admin requests to the list. 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