var-202109-1417
Vulnerability from variot
A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the libType1Scaler library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.The specific flaw exists within the parsing of PFB fonts. A crafted PFB font can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. 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 macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. The following products and versions are affected: Macos: 10.15 19A583, 10.15 19A602, 10.15 19A603, 10.15.1 19B88, 10.15.2 19C57, 10.15.3 19d76, 10.15.4 19E266, 10.15.4 19E287, 10.15.5 19F96, 10.15. 5 19F101, 10.15.6 19G73, 10.15.6 19G2021, 10.15.7 19H2, 10.15.7 19H4, 10.15.7 19H15, 10.15.7 19H114, 10.15.7 19H512, 10.15.7 19H524, 10.15.7 19H1030, 10.15. 7 19H1217. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
APPLE-SA-2021-07-21-1 iOS 14.7 and iPadOS 14.7
iOS 14.7 and iPadOS 14.7 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212601.
iOS 14.7 released July 19, 2021; iPadOS 14.7 released July 21, 2021
ActionKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A shortcut may be able to bypass Internet permission requirements Description: An input validation issue was addressed with improved input validation. CVE-2021-30763: Zachary Keffaber (@QuickUpdate5)
Audio Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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
AVEVideoEncoder Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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-2021-30748: George Nosenko
CoreAudio Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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
CoreGraphics Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution Description: A race condition was addressed with improved state handling. CVE-2021-30786: ryuzaki
CoreText Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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)
Find My Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to access Find My data Description: A permissions issue was addressed with improved validation. CVE-2021-30804: Csaba Fitzl (@theevilbit) of Offensive Security
FontParser Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-3518
Measure Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Multiple issues in libwebp Description: Multiple issues were addressed by updating to version 1.2.0. CVE-2018-25010 CVE-2018-25011 CVE-2018-25014 CVE-2020-36328 CVE-2020-36329 CVE-2020-36330 CVE-2020-36331
Model I/O Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to a denial of service Description: A logic issue was addressed with improved validation. CVE-2021-30796: Mickey Jin (@patch1t) of Trend Micro
Model I/O Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds write was addressed with improved input validation. CVE-2021-30792: Anonymous working with Trend Micro Zero Day Initiative
Model I/O Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted file may disclose user information Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-30791: Anonymous working with Trend Micro Zero Day Initiative
TCC Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to bypass certain Privacy preferences Description: A logic issue was addressed with improved state management. CVE-2021-30798: Mickey Jin (@patch1t) of Trend Micro
WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) 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
WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2021-30799: Sergei Glazunov of Google Project Zero
Wi-Fi Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Joining a malicious Wi-Fi network may result in a denial of service or arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30800: vm_call, Nozhdar Abdulkhaleq Shukri
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:
This update is available through iTunes and Software Update on your iOS device, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an Internet connection and have installed the latest version of iTunes from https://www.apple.com/itunes/
iTunes and Software Update on the device will automatically check Apple's update server on its weekly schedule. When an update is detected, it is downloaded and the option to be installed is presented to the user when the iOS device is docked. We recommend applying the update immediately if possible. Selecting Don't Install will present the option the next time you connect your iOS device. The automatic update process may take up to a week depending on the day that iTunes or the device checks for updates. You may manually obtain the update via the Check for Updates button within iTunes, or the Software Update on your device.
To check that the iPhone, iPod touch, or iPad has been updated: * Navigate to Settings * Select General * Select About * The version after applying this update will be "14.7"
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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. CVE-2021-30786: ryuzaki
CoreServices Available for: macOS Big Sur Impact: A malicious application may be able to gain root privileges Description: This issue was addressed with improved checks. CVE-2021-30766: Liu Long of Ant Security Light-Year Lab CVE-2021-30765: Liu Long of Ant Security Light-Year Lab
IOKit Available for: macOS Big Sur Impact: A local attacker may be able to execute code on the Apple T2 Security Chip Description: Multiple issues were addressed with improved logic. CVE-2021-30793: Zuozhi Fan (@pattern_F_) of Ant Security TianQiong Lab
Kext Management Available for: macOS Big Sur Impact: A malicious application may be able to bypass Privacy preferences Description: This issue was addressed with improved entitlements.
Alternatively, on your watch, select "My Watch > General > About"
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"data": "A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the libType1Scaler library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.The specific flaw exists within the parsing of PFB fonts. A crafted PFB font can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. 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 macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. The following products and versions are affected: Macos: 10.15 19A583, 10.15 19A602, 10.15 19A603, 10.15.1 19B88, 10.15.2 19C57, 10.15.3 19d76, 10.15.4 19E266, 10.15.4 19E287, 10.15.5 19F96, 10.15. 5 19F101, 10.15.6 19G73, 10.15.6 19G2021, 10.15.7 19H2, 10.15.7 19H4, 10.15.7 19H15, 10.15.7 19H114, 10.15.7 19H512, 10.15.7 19H524, 10.15.7 19H1030, 10.15. 7 19H1217. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-07-21-1 iOS 14.7 and iPadOS 14.7\n\niOS 14.7 and iPadOS 14.7 addresses the following issues. \nInformation about the security content is also available at\nhttps://support.apple.com/HT212601. \n\niOS 14.7 released July 19, 2021; iPadOS 14.7 released July 21, 2021\n\nActionKit\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A shortcut may be able to bypass Internet permission\nrequirements\nDescription: An input validation issue was addressed with improved\ninput validation. \nCVE-2021-30763: Zachary Keffaber (@QuickUpdate5)\n\nAudio\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A local attacker may be able to cause unexpected application\ntermination or arbitrary code execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30781: tr3e\n\nAVEVideoEncoder\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\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-2021-30748: George Nosenko\n\nCoreAudio\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted audio file may lead to\narbitrary code execution\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2021-30775: JunDong Xie of Ant Security Light-Year Lab\n\nCoreAudio\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Playing a malicious audio file may lead to an unexpected\napplication termination\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-30776: JunDong Xie of Ant Security Light-Year Lab\n\nCoreGraphics\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Opening a maliciously crafted PDF file may lead to an\nunexpected application termination or arbitrary code execution\nDescription: A race condition was addressed with improved state\nhandling. \nCVE-2021-30786: ryuzaki\n\nCoreText\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted font file may lead to\narbitrary code execution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-30789: Mickey Jin (@patch1t) of Trend Micro, Sunglin of\nKnownsec 404 team\n\nCrash Reporter\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious application may be able to gain root privileges\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-30774: Yizhuo Wang of Group of Software Security In\nProgress (G.O.S.S.I.P) at Shanghai Jiao Tong University\n\nCVMS\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious application may be able to gain root privileges\nDescription: An out-of-bounds write issue was addressed with improved\nbounds checking. \nCVE-2021-30780: Tim Michaud(@TimGMichaud) of Zoom Video\nCommunications\n\ndyld\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A sandboxed process may be able to circumvent sandbox\nrestrictions\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-30768: Linus Henze (pinauten.de)\n\nFind My\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious application may be able to access Find My data\nDescription: A permissions issue was addressed with improved\nvalidation. \nCVE-2021-30804: Csaba Fitzl (@theevilbit) of Offensive Security\n\nFontParser\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted font file may lead to\narbitrary code execution\nDescription: An integer overflow was addressed through improved input\nvalidation. \nCVE-2021-30760: Sunglin of Knownsec 404 team\n\nFontParser\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted tiff file may lead to a\ndenial-of-service or potentially disclose memory contents\nDescription: This issue was addressed with improved checks. \nCVE-2021-30788: tr3e working with Trend Micro Zero Day Initiative\n\nFontParser\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted font file may lead to\narbitrary code execution\nDescription: A stack overflow was addressed with improved input\nvalidation. \nCVE-2021-30759: hjy79425575 working with Trend Micro Zero Day\nInitiative\n\nIdentity Service\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious application may be able to bypass code signing\nchecks\nDescription: An issue in code signature validation was addressed with\nimproved checks. \nCVE-2021-30773: Linus Henze (pinauten.de)\n\nImage Processing\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\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-2021-30802: Matthew Denton of Google Chrome Security\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30779: Jzhu, Ye Zhang(@co0py_Cat) of Baidu Security\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: A buffer overflow was addressed with improved bounds\nchecking. \nCVE-2021-30785: CFF of Topsec Alpha Team, Mickey Jin (@patch1t) of\nTrend Micro\n\nKernel\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious attacker with arbitrary read and write capability\nmay be able to bypass Pointer Authentication\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30769: Linus Henze (pinauten.de)\n\nKernel\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: An attacker that has already achieved kernel code execution\nmay be able to bypass kernel memory mitigations\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-30770: Linus Henze (pinauten.de)\n\nlibxml2\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution\nDescription: This issue was addressed with improved checks. \nCVE-2021-3518\n\nMeasure\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Multiple issues in libwebp\nDescription: Multiple issues were addressed by updating to version\n1.2.0. \nCVE-2018-25010\nCVE-2018-25011\nCVE-2018-25014\nCVE-2020-36328\nCVE-2020-36329\nCVE-2020-36330\nCVE-2020-36331\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to a denial\nof service\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-30796: Mickey Jin (@patch1t) of Trend Micro\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds write was addressed with improved input\nvalidation. \nCVE-2021-30792: Anonymous working with Trend Micro Zero Day\nInitiative\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing a maliciously crafted file may disclose user\ninformation\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-30791: Anonymous working with Trend Micro Zero Day\nInitiative\n\nTCC\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: A malicious application may be able to bypass certain Privacy\npreferences\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-30798: Mickey Jin (@patch1t) of Trend Micro\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A type confusion issue was addressed with improved state\nhandling. \nCVE-2021-30758: Christoph Guttandin of Media Codings\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\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-2021-30795: Sergei Glazunov of Google Project Zero\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to code\nexecution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30797: Ivan Fratric of Google Project Zero\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: Multiple memory corruption issues were addressed with\nimproved memory handling. \nCVE-2021-30799: Sergei Glazunov of Google Project Zero\n\nWi-Fi\nAvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2\nand later, iPad 5th generation and later, iPad mini 4 and later, and\niPod touch (7th generation)\nImpact: Joining a malicious Wi-Fi network may result in a denial of\nservice or arbitrary code execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-30800: vm_call, Nozhdar Abdulkhaleq Shukri\n\nAdditional recognition\n\nAssets\nWe would like to acknowledge Cees Elzinga for their assistance. \n\nCoreText\nWe would like to acknowledge Mickey Jin (@patch1t) of Trend Micro for\ntheir assistance. \n\nSafari\nWe would like to acknowledge an anonymous researcher for their\nassistance. \n\nSandbox\nWe would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive\nSecurity for their assistance. \n\nInstallation note:\n\nThis update is available through iTunes and Software Update on your\niOS device, and will not appear in your computer\u0027s Software Update\napplication, or in the Apple Downloads site. Make sure you have an\nInternet connection and have installed the latest version of iTunes\nfrom https://www.apple.com/itunes/\n\niTunes and Software Update on the device will automatically check\nApple\u0027s update server on its weekly schedule. When an update is\ndetected, it is downloaded and the option to be installed is\npresented to the user when the iOS device is docked. We recommend\napplying the update immediately if possible. Selecting Don\u0027t Install\nwill present the option the next time you connect your iOS device. \nThe automatic update process may take up to a week depending on the\nday that iTunes or the device checks for updates. You may manually\nobtain the update via the Check for Updates button within iTunes, or\nthe Software Update on your device. \n\nTo check that the iPhone, iPod touch, or iPad has been updated:\n* Navigate to Settings\n* Select General\n* Select About\n* The version after applying this update will be \"14.7\"\n\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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\njOF1D12o58uAewxAsK+cTixe7I9U5Awkad2Jz19V3qHnRWGqtVg\\x8e1h\n-----END PGP SIGNATURE-----\n\n\n. \nCVE-2021-30786: ryuzaki\n\nCoreServices\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to gain root privileges\nDescription: This issue was addressed with improved checks. \nCVE-2021-30766: Liu Long of Ant Security Light-Year Lab\nCVE-2021-30765: Liu Long of Ant Security Light-Year Lab\n\nIOKit\nAvailable for: macOS Big Sur\nImpact: A local attacker may be able to execute code on the Apple T2\nSecurity Chip\nDescription: Multiple issues were addressed with improved logic. \nCVE-2021-30793: Zuozhi Fan (@pattern_F_) of Ant Security TianQiong\nLab\n\nKext Management\nAvailable for: macOS Big Sur\nImpact: A malicious application may be able to bypass Privacy\npreferences\nDescription: This issue was addressed with improved entitlements. \n\nAlternatively, on your watch, select \"My Watch \u003e General \u003e About\"",
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