site_archiver@lists.apple.com Delivered-To: security-announce@lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-07-21-6 tvOS 14.7 tvOS 14.7 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212604. Audio Available for: Apple TV 4K and Apple TV HD Impact: A local attacker may be able to cause unexpected application termination or arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30781: tr3e CoreAudio Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2021-30775: JunDong Xie of Ant Security Light-Year Lab CoreAudio Available for: Apple TV 4K and Apple TV HD Impact: Playing a malicious audio file may lead to an unexpected application termination Description: A logic issue was addressed with improved validation. CVE-2021-30776: JunDong Xie of Ant Security Light-Year Lab CoreText 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-2021-30789: Mickey Jin (@patch1t) of Trend Micro, Sunglin of Knownsec 404 team Crash Reporter Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to gain root privileges Description: A logic issue was addressed with improved validation. CVE-2021-30774: Yizhuo Wang of Group of Software Security In Progress (G.O.S.S.I.P) at Shanghai Jiao Tong University CVMS Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to gain root privileges Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-30780: Tim Michaud(@TimGMichaud) of Zoom Video Communications dyld Available for: Apple TV 4K and Apple TV HD Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: A logic issue was addressed with improved validation. CVE-2021-30768: Linus Henze (pinauten.de) 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 integer overflow was addressed through improved input validation. CVE-2021-30760: Sunglin of Knownsec 404 team FontParser Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted tiff file may lead to a denial-of-service or potentially disclose memory contents Description: This issue was addressed with improved checks. CVE-2021-30788: tr3e working with Trend Micro Zero Day Initiative FontParser Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A stack overflow was addressed with improved input validation. CVE-2021-30759: hjy79425575 working with Trend Micro Zero Day Initiative Identity Service Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to bypass code signing checks Description: An issue in code signature validation was addressed with improved checks. CVE-2021-30773: Linus Henze (pinauten.de) Image Processing Available for: Apple TV 4K and Apple TV HD 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-2021-30802: Matthew Denton of Google Chrome Security 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-2021-30779: Jzhu, Ye Zhang(@co0py_Cat) 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: A buffer overflow was addressed with improved bounds checking. CVE-2021-30785: CFF of Topsec Alpha Team, Mickey Jin (@patch1t) of Trend Micro Kernel Available for: Apple TV 4K and Apple TV HD Impact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication Description: A logic issue was addressed with improved state management. CVE-2021-30769: Linus Henze (pinauten.de) Kernel Available for: Apple TV 4K and Apple TV HD Impact: An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations Description: A logic issue was addressed with improved validation. CVE-2021-30770: Linus Henze (pinauten.de) libxml2 Available for: Apple TV 4K and Apple TV HD Impact: A remote attacker may be able to cause arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-3518 WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved state handling. CVE-2021-30758: Christoph Guttandin of Media Codings WebKit Available for: Apple TV 4K and Apple TV HD 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-2021-30795: Sergei Glazunov of Google Project Zero WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to code execution Description: This issue was addressed with improved checks. CVE-2021-30797: Ivan Fratric of Google Project Zero Additional recognition Assets We would like to acknowledge Cees Elzinga for their assistance. CoreText We would like to acknowledge Mickey Jin (@patch1t) of Trend Micro for their assistance. Safari We would like to acknowledge an anonymous researcher for their assistance. Sandbox We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive Security for their assistance. 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----- iQIzBAEBCAAdFiEEbURczHs1TP07VIfuZcsbuWJ6jjAFAmD4sAkACgkQZcsbuWJ6 jjD5oA//a1OagBps6Wv7d8Wap8qvZju5cnyzl2LWvK0m/CSqY0w5SMhrzQ/iy2XO 5qBjUOTZhBKc6tIA3pZYNz/1gMuy8cvLSftxcBG4uwYLsyDF8cFQInQFy/QALm7V UcUXbm5pbDz3WGdIq8aceSG/M+2KWzXXw6kZG/AsZr1c+oPSQir8bHHaScz5k0ec NRjmV/H1XP78ZDBoVwt0gzD/58hhKJojBlriDbaSrrWCGMs7Xyz0CUaJPBK7msOZ eMrLXQxhPeh7m1xdTM4vI5Yo0Cez6ol3SS0ryQzqKOL614rYVGgYyc+IciNXCKIv DDdkN3+dGYeEASfnKmN2xgpL2NtkrTDoyyPGCwufdmkHtcmnPS4+odmJaaStJO8r fM5GWH1s7bUR2QkFWsK0DMjz9DwUhjfmCPrv+Nji+FDwMdIOhvHFTvqY/t7xxgrm 2jw7fF+7ugaCtnTNasrHkdR9HG5TrDYU51sV2MxXlWSLWqlJJKC8xy1Pk2JqH0Z7 6xYZvXqefRzb86OMY0N0GTxpvCLFo92Mmq5H8Zmrpl2q9l9QQSGFHP9DDA/oLCSb UfI9UXfT2Z79+vGKV97gXVDLhaiHPy9b725lq8Sn5HbsutGFmY+VBUvRCgTd9MNn ycBzm2H2/zOw7h3M9Q62mPciT/d4X2uMZ7fo647xeoHjYu/j9Rk= =q0q7 -----END PGP SIGNATURE----- _______________________________________________ Do not post admin requests to the list. 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