var-202205-1295
Vulnerability from variot

A memory corruption issue was addressed with improved validation. This issue is fixed in watchOS 8.6, tvOS 15.5, macOS Monterey 12.4, iOS 15.5 and iPadOS 15.5. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations. plural Apple product Exists in an out-of-bounds write vulnerability.Information may be tampered with. Used to push out 4K Hdr images. Apple TV HD is a high-definition TV set-top box product. Alternatively, on your watch, select "My Watch > General > About". -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

APPLE-SA-2022-05-16-6 tvOS 15.5

tvOS 15.5 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT213254.

AppleAVD Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A use after free issue was addressed with improved memory management. CVE-2022-26702: an anonymous researcher

AppleAVD Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited. CVE-2022-22675: an anonymous researcher

AuthKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A local user may be able to enable iCloud Photos without authentication Description: An authentication issue was addressed with improved state management. CVE-2022-26724: Jorge A. Caballero (@DataDrivenMD)

AVEVideoEncoder Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An 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-2022-26736: an anonymous researcher CVE-2022-26737: an anonymous researcher CVE-2022-26738: an anonymous researcher CVE-2022-26739: an anonymous researcher CVE-2022-26740: an anonymous researcher

DriverKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A malicious application may be able to execute arbitrary code with system privileges Description: An out-of-bounds access issue was addressed with improved bounds checking. CVE-2022-26763: Linus Henze of Pinauten GmbH (pinauten.de)

ImageIO Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: An integer overflow was addressed with improved input validation. CVE-2022-26711: actae0n of Blacksun Hackers Club working with Trend Micro Zero Day Initiative

IOKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A race condition was addressed with improved locking. CVE-2022-26701: chenyuwang (@mzzzz__) of Tencent Security Xuanwu Lab

IOMobileFrameBuffer Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2022-26768: an anonymous researcher

IOSurfaceAccelerator Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2022-26771: an anonymous researcher

Kernel Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved validation. CVE-2022-26714: Peter Nguyễn Vũ Hoàng (@peternguyen14) of STAR Labs (@starlabs_sg)

Kernel Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An application may be able to execute arbitrary code with kernel privileges Description: A use after free issue was addressed with improved memory management. CVE-2022-26757: Ned Williamson of Google Project Zero

Kernel Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations Description: A memory corruption issue was addressed with improved validation. CVE-2022-26764: Linus Henze of Pinauten GmbH (pinauten.de)

Kernel Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication Description: A race condition was addressed with improved state handling. CVE-2022-26765: Linus Henze of Pinauten GmbH (pinauten.de)

LaunchServices Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: An access issue was addressed with additional sandbox restrictions on third-party applications. CVE-2022-26706: Arsenii Kostromin (0x3c3e)

libxml2 Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2022-23308

Security Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A malicious app may be able to bypass signature validation Description: A certificate parsing issue was addressed with improved checks. CVE-2022-26766: Linus Henze of Pinauten GmbH (pinauten.de)

WebKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: Processing maliciously crafted web content may lead to code execution Description: A memory corruption issue was addressed with improved state management. WebKit Bugzilla: 238178 CVE-2022-26700: ryuzaki

WebKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), 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. WebKit Bugzilla: 236950 CVE-2022-26709: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab WebKit Bugzilla: 237475 CVE-2022-26710: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab WebKit Bugzilla: 238171 CVE-2022-26717: Jeonghoon Shin of Theori

WebKit Available for: Apple TV 4K, Apple TV 4K (2nd generation), 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. WebKit Bugzilla: 238183 CVE-2022-26716: SorryMybad (@S0rryMybad) of Kunlun Lab WebKit Bugzilla: 238699 CVE-2022-26719: Dongzhuo Zhao working with ADLab of Venustech

Wi-Fi Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD Impact: A malicious application may disclose restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2022-26745: an anonymous researcher

Additional recognition

AppleMobileFileIntegrity We would like to acknowledge Wojciech Reguła (@_r3ggi) of SecuRing for their assistance.

WebKit We would like to acknowledge James Lee, an anonymous researcher for their assistance.

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." All information is also posted on the Apple Security Updates web site: https://support.apple.com/en-us/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-----

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Alternatively, on your watch, select\n\"My Watch \u003e General \u003e About\". -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2022-05-16-6 tvOS 15.5\n\ntvOS 15.5 addresses the following issues. \nInformation about the security content is also available at\nhttps://support.apple.com/HT213254. \n\nAppleAVD\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2022-26702: an anonymous researcher\n\nAppleAVD\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges. Apple is aware of a report that this issue may\nhave been actively exploited. \nCVE-2022-22675: an anonymous researcher\n\nAuthKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A local user may be able to enable iCloud Photos without\nauthentication\nDescription: An authentication issue was addressed with improved\nstate management. \nCVE-2022-26724:  Jorge A. Caballero (@DataDrivenMD)\n\nAVEVideoEncoder\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: An out-of-bounds write issue was addressed with improved\nbounds checking. \nCVE-2022-26736: an anonymous researcher\nCVE-2022-26737: an anonymous researcher\nCVE-2022-26738: an anonymous researcher\nCVE-2022-26739: an anonymous researcher\nCVE-2022-26740: an anonymous researcher\n\nDriverKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A malicious application may be able to execute arbitrary code\nwith system privileges\nDescription: An out-of-bounds access issue was addressed with\nimproved bounds checking. \nCVE-2022-26763: Linus Henze of Pinauten GmbH (pinauten.de)\n\nImageIO\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A remote attacker may be able to cause unexpected application\ntermination or arbitrary code execution\nDescription: An integer overflow was addressed with improved input\nvalidation. \nCVE-2022-26711: actae0n of Blacksun Hackers Club working with Trend\nMicro Zero Day Initiative\n\nIOKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A race condition was addressed with improved locking. \nCVE-2022-26701: chenyuwang (@mzzzz__) of Tencent Security Xuanwu Lab\n\nIOMobileFrameBuffer\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2022-26768: an anonymous researcher\n\nIOSurfaceAccelerator\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A malicious application may be able to execute arbitrary code\nwith kernel privileges\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2022-26771: an anonymous researcher\n\nKernel\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2022-26714: Peter Nguy\u1ec5n V\u0169 Ho\u00e0ng (@peternguyen14) of STAR Labs\n(@starlabs_sg)\n\nKernel\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2022-26757: Ned Williamson of Google Project Zero\n\nKernel\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: An attacker that has already achieved kernel code execution\nmay be able to bypass kernel memory mitigations\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2022-26764: Linus Henze of Pinauten GmbH (pinauten.de)\n\nKernel\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A malicious attacker with arbitrary read and write capability\nmay be able to bypass Pointer Authentication\nDescription: A race condition was addressed with improved state\nhandling. \nCVE-2022-26765: Linus Henze of Pinauten GmbH (pinauten.de)\n\nLaunchServices\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A sandboxed process may be able to circumvent sandbox\nrestrictions\nDescription: An access issue was addressed with additional sandbox\nrestrictions on third-party applications. \nCVE-2022-26706: Arsenii Kostromin (0x3c3e)\n\nlibxml2\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A remote attacker may be able to cause unexpected application\ntermination or arbitrary code execution\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2022-23308\n\nSecurity\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A malicious app may be able to bypass signature validation\nDescription: A certificate parsing issue was addressed with improved\nchecks. \nCVE-2022-26766: Linus Henze of Pinauten GmbH (pinauten.de)\n\nWebKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: Processing maliciously crafted web content may lead to code\nexecution\nDescription: A memory corruption issue was addressed with improved\nstate management. \nWebKit Bugzilla: 238178\nCVE-2022-26700: ryuzaki\n\nWebKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A use after free issue was addressed with improved\nmemory management. \nWebKit Bugzilla: 236950\nCVE-2022-26709: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua\nwingtecher lab\nWebKit Bugzilla: 237475\nCVE-2022-26710: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua\nwingtecher lab\nWebKit Bugzilla: 238171\nCVE-2022-26717: Jeonghoon Shin of Theori\n\nWebKit\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A memory corruption issue was addressed with improved\nstate management. \nWebKit Bugzilla: 238183\nCVE-2022-26716: SorryMybad (@S0rryMybad) of Kunlun Lab\nWebKit Bugzilla: 238699\nCVE-2022-26719: Dongzhuo Zhao working with ADLab of Venustech\n\nWi-Fi\nAvailable for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple\nTV HD\nImpact: A malicious application may disclose restricted memory\nDescription: A memory corruption issue was addressed with improved\nvalidation. \nCVE-2022-26745: an anonymous researcher\n\nAdditional recognition\n\nAppleMobileFileIntegrity\nWe would like to acknowledge Wojciech Regu\u0142a (@_r3ggi) of SecuRing\nfor their assistance. \n\nWebKit\nWe would like to acknowledge James Lee, an anonymous researcher for\ntheir assistance. \n\nApple TV will periodically check for software updates. 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