var-202109-1339
Vulnerability from variot
This issue was addressed with improved checks. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. A local attacker may be able to elevate their privileges. This vulnerability allows local attackers to escalate privileges on affected installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the CVMServer daemon. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. 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. Apple tvOS is a smart TV operating system developed by Apple (Apple). Apple tvOS has a permissions and access control issue vulnerability, which stems from the application not properly applying security restrictions in CVMS. The following products and versions are affected: tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
APPLE-SA-2021-05-25-7 tvOS 14.6
tvOS 14.6 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212532.
Audio Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30707: hjy79425575 working with Trend Micro Zero Day Initiative
Audio Available for: Apple TV 4K and Apple TV HD Impact: Parsing a maliciously crafted audio file may lead to disclosure of user information Description: This issue was addressed with improved checks. CVE-2021-30685: Mickey Jin (@patch1t) of Trend Micro
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 bounds checking. CVE-2021-30686: Mickey Jin of Trend Micro
Crash Reporter Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to modify protected parts of the file system Description: A logic issue was addressed with improved state management. CVE-2021-30727: Cees Elzinga
CVMS Available for: Apple TV 4K and Apple TV HD Impact: A local attacker may be able to elevate their privileges Description: This issue was addressed with improved checks. CVE-2021-30724: Mickey Jin (@patch1t) of Trend Micro
Heimdal Available for: Apple TV 4K and Apple TV HD Impact: A local user may be able to leak sensitive user information Description: A logic issue was addressed with improved state management. CVE-2021-30697: Gabe Kirkpatrick (@gabe_k)
Heimdal Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may cause a denial of service or potentially disclose memory contents Description: A memory corruption issue was addressed with improved state management. CVE-2021-30710: Gabe Kirkpatrick (@gabe_k)
ImageIO Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted image may lead to disclosure of user information Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-30687: Hou JingYi (@hjy79425575) of Qihoo 360
ImageIO Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted image may lead to disclosure of user information Description: This issue was addressed with improved checks. CVE-2021-30700: 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: This issue was addressed with improved checks. CVE-2021-30701: Mickey Jin (@patch1t) of Trend Micro and Ye Zhang of Baidu Security
ImageIO Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted ASTC file may disclose memory contents Description: This issue was addressed with improved checks. CVE-2021-30705: Ye Zhang of Baidu Security
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 logic issue was addressed with improved validation. CVE-2021-30740: Linus Henze (pinauten.de)
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-2021-30704: an anonymous researcher
Kernel Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted message may lead to a denial of service Description: A logic issue was addressed with improved state management. CVE-2021-30715: The UK's National Cyber Security Centre (NCSC)
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 buffer overflow was addressed with improved size validation. CVE-2021-30736: Ian Beer of Google Project Zero
LaunchServices Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to break out of its sandbox Description: This issue was addressed with improved environment sanitization. CVE-2021-30677: Ron Waisberg (@epsilan)
Security Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted certificate may lead to arbitrary code execution Description: A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. CVE-2021-30737: xerub
WebKit 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. CVE-2021-30665: yangkang (@dnpushme)&zerokeeper&bianliang of 360 ATA
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 cross-origin issue with iframe elements was addressed with improved tracking of security origins. CVE-2021-30744: Dan Hite of jsontop
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-2021-21779: Marcin Towalski of Cisco Talos
WebKit Available for: Apple TV 4K and Apple TV HD Impact: A malicious application may be able to leak sensitive user information Description: A logic issue was addressed with improved restrictions. CVE-2021-30682: an anonymous researcher and 1lastBr3ath
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 state management. CVE-2021-30689: an anonymous researcher
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-2021-30749: an anonymous researcher and mipu94 of SEFCOM lab, ASU. working with Trend Micro Zero Day Initiative CVE-2021-30734: Jack Dates of RET2 Systems, Inc. (@ret2systems) working with Trend Micro Zero Day Initiative
WebKit Available for: Apple TV 4K and Apple TV HD Impact: A malicious website may be able to access restricted ports on arbitrary servers Description: A logic issue was addressed with improved restrictions. CVE-2021-30720: David Schütz (@xdavidhu)
WebKit 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. CVE-2021-30663: an anonymous researcher
Additional recognition
ImageIO We would like to acknowledge Jzhu working with Trend Micro Zero Day Initiative and an anonymous researcher for their assistance.
WebKit We would like to acknowledge Chris Salls (@salls) of Makai Security 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." 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": "This issue was addressed with improved checks. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. A local attacker may be able to elevate their privileges. This vulnerability allows local attackers to escalate privileges on affected installations of Apple macOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the CVMServer daemon. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. 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. Apple tvOS is a smart TV operating system developed by Apple (Apple). Apple tvOS has a permissions and access control issue vulnerability, which stems from the application not properly applying security restrictions in CVMS. The following products and versions are affected: tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-05-25-7 tvOS 14.6\n\ntvOS 14.6 addresses the following issues. \nInformation about the security content is also available at\nhttps://support.apple.com/HT212532. \n\nAudio\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted audio file may lead to\narbitrary code execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30707: hjy79425575 working with Trend Micro Zero Day\nInitiative\n\nAudio\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Parsing a maliciously crafted audio file may lead to\ndisclosure of user information\nDescription: This issue was addressed with improved checks. \nCVE-2021-30685: Mickey Jin (@patch1t) of Trend Micro\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 bounds\nchecking. \nCVE-2021-30686: Mickey Jin of Trend Micro\n\nCrash Reporter\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A malicious application may be able to modify protected parts\nof the file system\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30727: Cees Elzinga\n\nCVMS\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A local attacker may be able to elevate their privileges\nDescription: This issue was addressed with improved checks. \nCVE-2021-30724: Mickey Jin (@patch1t) of Trend Micro\n\nHeimdal\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A local user may be able to leak sensitive user information\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30697: Gabe Kirkpatrick (@gabe_k)\n\nHeimdal\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A malicious application may cause a denial of service or\npotentially disclose memory contents\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2021-30710: Gabe Kirkpatrick (@gabe_k)\n\nImageIO\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted image may lead to disclosure\nof user information\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-30687: Hou JingYi (@hjy79425575) of Qihoo 360\n\nImageIO\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted image may lead to disclosure\nof user information\nDescription: This issue was addressed with improved checks. \nCVE-2021-30700: Ye Zhang(@co0py_Cat) 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: This issue was addressed with improved checks. \nCVE-2021-30701: Mickey Jin (@patch1t) of Trend Micro and Ye Zhang of\nBaidu Security\n\nImageIO\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted ASTC file may disclose\nmemory contents\nDescription: This issue was addressed with improved checks. \nCVE-2021-30705: Ye Zhang of Baidu Security\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 logic issue was addressed with improved validation. \nCVE-2021-30740: Linus Henze (pinauten.de)\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-2021-30704: an anonymous researcher\n\nKernel\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted message may lead to a denial\nof service\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30715: The UK\u0027s National Cyber Security Centre (NCSC)\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 buffer overflow was addressed with improved size\nvalidation. \nCVE-2021-30736: Ian Beer of Google Project Zero\n\nLaunchServices\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A malicious application may be able to break out of its\nsandbox\nDescription: This issue was addressed with improved environment\nsanitization. \nCVE-2021-30677: Ron Waisberg (@epsilan)\n\nSecurity\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing a maliciously crafted certificate may lead to\narbitrary code execution\nDescription: A memory corruption issue in the ASN.1 decoder was\naddressed by removing the vulnerable code. \nCVE-2021-30737: xerub\n\nWebKit\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. \nCVE-2021-30665: yangkang (@dnpushme)\u0026zerokeeper\u0026bianliang of 360 ATA\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 cross-origin issue with iframe elements was addressed\nwith improved tracking of security origins. \nCVE-2021-30744: Dan Hite of jsontop\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 use after free issue was addressed with improved\nmemory management. \nCVE-2021-21779: Marcin Towalski of Cisco Talos\n\nWebKit\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A malicious application may be able to leak sensitive user\ninformation\nDescription: A logic issue was addressed with improved restrictions. \nCVE-2021-30682: an anonymous researcher and 1lastBr3ath\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 state\nmanagement. \nCVE-2021-30689: an anonymous researcher\n\nWebKit\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: Multiple memory corruption issues were addressed with\nimproved memory handling. \nCVE-2021-30749: an anonymous researcher and mipu94 of SEFCOM lab,\nASU. working with Trend Micro Zero Day Initiative\nCVE-2021-30734: Jack Dates of RET2 Systems, Inc. (@ret2systems)\nworking with Trend Micro Zero Day Initiative\n\nWebKit\nAvailable for: Apple TV 4K and Apple TV HD\nImpact: A malicious website may be able to access restricted ports on\narbitrary servers\nDescription: A logic issue was addressed with improved restrictions. \nCVE-2021-30720: David Sch\u00fctz (@xdavidhu)\n\nWebKit\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. \nCVE-2021-30663: an anonymous researcher\n\nAdditional recognition\n\nImageIO\nWe would like to acknowledge Jzhu working with Trend Micro Zero Day\nInitiative and an anonymous researcher for their assistance. \n\nWebKit\nWe would like to acknowledge Chris Salls (@salls) of Makai Security\nfor their assistance. \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.\"\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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\ndcezqg6o22ZxpogRJuRf41Y87ktE5o73wgj0xu72MQoxK86+Ek0=\n=BeQR\n-----END PGP SIGNATURE-----\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.