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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0355 tvOS 13.3.1 31 January 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: tvOS Publisher: Apple Operating System: Apple iOS Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Root Compromise -- Existing Account Increased Privileges -- Existing Account Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-3878 CVE-2020-3875 CVE-2020-3872 CVE-2020-3870 CVE-2020-3868 CVE-2020-3857 CVE-2020-3856 CVE-2020-3853 CVE-2020-3842 CVE-2020-3840 CVE-2020-3838 CVE-2020-3837 CVE-2020-3836 CVE-2020-3829 Reference: ESB-2020.0354 ESB-2020.0353 ESB-2020.0351 ESB-2020.0346 Original Bulletin: https://support.apple.com/en-au/HT210920 - --------------------------BEGIN INCLUDED TEXT-------------------- APPLE-SA-2020-1-28-4 tvOS 13.3.1 tvOS 13.3.1 is now available and addresses the following: Audio Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2020-3857: Zhuo Liang of Qihoo 360 Vulcan Team 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 input validation. CVE-2020-3870 CVE-2020-3878: Samuel Gross of Google Project Zero IOAcceleratorFamily Available for: Apple TV 4K 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 memory handling. CVE-2020-3837: Brandon Azad of Google Project Zero IPSec Available for: Apple TV 4K and Apple TV HD Impact: Loading a maliciously crafted racoon configuration file may lead to arbitrary code execution Description: An off by one issue existed in the handling of racoon configuration files. This issue was addressed through improved bounds checking. CVE-2020-3840: @littlelailo Kernel Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2020-3875: Brandon Azad of Google Project Zero Kernel Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to read restricted memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2020-3872: Haakon Garseg Mørk of Cognite and Cim Stordal of Cognite Kernel Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to determine kernel memory layout Description: An access issue was addressed with improved memory management. CVE-2020-3836: Brandon Azad of Google Project Zero 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 memory corruption issue was addressed with improved memory handling. CVE-2020-3842: Ned Williamson working with Google Project Zero Kernel Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to execute arbitrary code with system privileges Description: A type confusion issue was addressed with improved memory handling. CVE-2020-3853: Brandon Azad of Google Project Zero libxpc Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted string may lead to heap corruption Description: A memory corruption issue was addressed with improved input validation. CVE-2020-3856: Ian Beer of Google Project Zero libxpc Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to gain elevated privileges Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-3829: Ian Beer of Google Project Zero WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2020-3868: Marcin Towalski of Cisco Talos wifivelocityd Available for: Apple TV 4K and Apple TV HD Impact: An application may be able to execute arbitrary code with system privileges Description: The issue was addressed with improved permissions logic. CVE-2020-3838: Dayton Pidhirney (@_watbulb) Additional recognition IOSurface We would like to acknowledge Liang Chen (@chenliang0817) 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXjNvqWaOgq3Tt24GAQiuJw//fyYu+KnQqWMNumRRUKL6H1k1rAX/zzn7 XFVu2/lEoOjRNHWy0qDkqOnsdHNNT0WiGQawM2bTNvOKcIMKvAGB4ciRUfruKLMe oMJENrknarCeOflpQtOUvY2skpJIql/7dK4xq4sXYi2iONfoTwu2fu4LBa+NzRle X4GYfV9n/qZ6SrPLVQIpgjBbKjXCFPG9ZCQMcClJRs6vJacCtx6Izjyuu9KU/yY6 t/XF2cDYR7UBXdjN43I1RUA98v3Cn619Q90OM98dDpUSjz9k4xISsh0gOlMeW0qR rfbptOdrq1ODn5YjTklR3FGirRyTCqkooS6oH9LO6pTxepTNADmIU8OfJcK5xq5u isib73VuPjDG4ZhWlG6oRzoltuu0A5BRKh2U+jCfk3LGy2TO7UKbDzNiVA94jwji XbwVtURrRoILpmXUyHKvjfTZT5+v+rDR8KkoZ9puzPDABSd5vvx7rU0du7N2y2OI JsMtWY+AnXoP+BMQadu5bfNd2tdpSwpUsuKpP8dHSYQg1gPeyynBpXntN94/u0gA Jk79SS99MsAwX9YfmZvJ8bR8MY2a7KYKi8eTtR3o4QEYOnhbaG4eDuLEY+OjGM9j +6N9Tw4QeF6gww+wtfheU6VzPH05NEL72PHNm7vRu9HEF3K0Fed9qxkZ4qBnMn2P 0cn0+GrqsU0= =6XwW -----END PGP SIGNATURE-----