ID

VAR-202109-0349

CVE

CVE-2021-1835

TITLE

Pillow Buffer error vulnerability

DESCRIPTION

This issue was addressed with improved checks. This issue is fixed in iOS 14.5 and iPadOS 14.5. A person with physical access to an iOS device may be able to access notes from the lock screen. 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 iPadOS is an operating system for iPad tablet computers developed by Apple. The vulnerability could allow local users to access sensitive information. The following products and versions are affected: iPadOS: 14.0 18A373, 14.0.1 18A393, 14.1 18A8395, 14.2 18B92, 14.2 18B111, 14.3 18C66, 14.4 18D52, 14.4.1 18D61, 14.4.2 18D70. APPLE-SA-2021-04-26-1 iOS 14.5 and iPadOS 14.5. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-04-26-1 iOS 14.5 and iPadOS 14.5 iOS 14.5 and iPadOS 14.5 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212317. Accessibility 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 person with physical access to an iOS device may be able to access notes from the lock screen Description: This issue was addressed with improved checks. CVE-2021-1835: videosdebarraquito App Store 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 in a privileged network position may be able to alter network traffic Description: A certificate validation issue was addressed. CVE-2021-1837: Aapo Oksman of Nixu Cybersecurity Apple Neural Engine Available for: iPhone 8 and later, iPad Pro (3rd generation) and later, and iPad Air (3rd generation) and later Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1867: Zuozhi Fan (@pattern_F_) and Wish Wu (吴潍浠) of Ant Group Tianqiong Security Lab AppleMobileFileIntegrity 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 Privacy preferences Description: An issue in code signature validation was addressed with improved checks. CVE-2021-1849: Siguza Assets 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 user may be able to create or modify privileged files Description: A logic issue was addressed with improved restrictions. CVE-2021-1836: an anonymous researcher 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: An application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1808: JunDong Xie of Ant Security Light-Year Lab CFNetwork 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 disclose sensitive user information Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1857: an anonymous researcher 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 disclose restricted memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1846: 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: A malicious application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1809: JunDong Xie of Ant Security Light-Year Lab CoreFoundation 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 leak sensitive user information Description: A validation issue was addressed with improved logic. CVE-2021-30659: Thijs Alkemade of Computest 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 may result in the disclosure of process memory Description: A logic issue was addressed with improved state management. CVE-2021-1811: Xingwei Lin of Ant Security Light-Year Lab FaceTime 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: Muting a CallKit call while ringing may not result in mute being enabled Description: A logic issue was addressed with improved state management. CVE-2021-1872: Siraj Zaneer of Facebook 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 out-of-bounds read was addressed with improved input validation. CVE-2021-1881: an anonymous researcher, Xingwei Lin of Ant Security Light-Year Lab, Mickey Jin of Trend Micro, and Hou JingYi (@hjy79425575) of Qihoo 360 Foundation 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 gain elevated privileges Description: A memory corruption issue was addressed with improved validation. CVE-2021-1882: Gabe Kirkpatrick (@gabe_k) Foundation 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 validation issue was addressed with improved logic. CVE-2021-1813: Cees Elzinga GPU Drivers 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 determine kernel memory layout Description: An access issue was addressed with improved memory management. CVE-2021-30656: Justin Sherman of University of Maryland, Baltimore County Heimdal 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 server messages may lead to heap corruption Description: This issue was addressed with improved checks. CVE-2021-1883: Gabe Kirkpatrick (@gabe_k) Heimdal 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 a denial of service Description: A race condition was addressed with improved locking. CVE-2021-1884: Gabe Kirkpatrick (@gabe_k) 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: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1885: CFF of Topsec Alpha Team 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-2021-30653: Ye Zhang of Baidu Security CVE-2021-1843: Ye Zhang 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: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-1858: Mickey Jin of Trend Micro iTunes Store 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 with JavaScript execution may be able to execute arbitrary code Description: A use after free issue was addressed with improved memory management. CVE-2021-1864: CodeColorist of Ant-Financial LightYear Labs 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 local user may be able to read kernel memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1877: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab CVE-2021-1852: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab CVE-2021-1830: Tielei Wang of Pangu Lab 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 application may be able to execute arbitrary code with kernel privileges Description: A logic issue was addressed with improved state management. CVE-2021-1874: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab CVE-2021-1851: @0xalsr 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 application may be able to disclose kernel memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1860: @0xalsr 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 application may be able to execute arbitrary code with kernel privileges Description: A buffer overflow was addressed with improved bounds checking. CVE-2021-1816: Tielei Wang of Pangu Lab 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: Copied files may not have the expected file permissions Description: The issue was addressed with improved permissions logic. CVE-2021-1832: an anonymous researcher 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 application may be able to disclose kernel memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-30660: Alex Plaskett libxpc 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 race condition was addressed with additional validation. CVE-2021-30652: James Hutchins libxslt 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 lead to heap corruption Description: A double free issue was addressed with improved memory management. CVE-2021-1875: Found by OSS-Fuzz MobileInstallation 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 user may be able to modify protected parts of the file system Description: A logic issue was addressed with improved restrictions. CVE-2021-1822: Bruno Virlet of The Grizzly Labs Password Manager 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 user's password may be visible on screen Description: An issue obscuring passwords in screenshots was addressed with improved logic. CVE-2021-1865: Shibin B Shaji of UST Preferences 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 user may be able to modify protected parts of the file system Description: A parsing issue in the handling of directory paths was addressed with improved path validation. CVE-2021-1815: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) CVE-2021-1739: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) CVE-2021-1740: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) Safari 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 user may be able to write arbitrary files Description: A validation issue was addressed with improved input sanitization. CVE-2021-1807: David Schütz (@xdavidhu) Shortcuts 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 allow shortcuts to access restricted files Description: The issue was addressed with improved permissions logic. CVE-2021-1831: Bouke van der Bijl Tailspin 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 elevate their privileges Description: A logic issue was addressed with improved state management. CVE-2021-1868: Tim Michaud of Zoom Communications Telephony 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 legacy cellular network can automatically answer an incoming call when an ongoing call ends or drops. CVE-2021-1854: Steven Thorne of Cspire Wallet 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 user may be able to view sensitive information in the app switcher Description: The issue was addressed with improved UI handling. CVE-2021-1848: Bradley D’Amato of ActionIQ 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 a cross site scripting attack Description: An input validation issue was addressed with improved input validation. CVE-2021-1825: Alex Camboe of Aon’s Cyber Solutions 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 memory corruption issue was addressed with improved state management. CVE-2021-1817: an anonymous researcher 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 universal cross site scripting Description: A logic issue was addressed with improved restrictions. CVE-2021-1826: an anonymous researcher 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 result in the disclosure of process memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1820: an anonymous researcher WebKit Storage 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. Apple is aware of a report that this issue may have been actively exploited. CVE-2021-30661: yangkang(@dnpushme) of 360 ATA WebRTC 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 unexpected system termination or corrupt kernel memory Description: A use after free issue was addressed with improved memory management. CVE-2020-7463: Megan2013678 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 "14.5" 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----- iQIzBAEBCAAdFiEEbURczHs1TP07VIfuZcsbuWJ6jjAFAmCHOzAACgkQZcsbuWJ6 jjAaUw/+LVyzY07R4wF0TVOLZ1Svkt/cfR69bliLBa+IN5qIzkeTkdnCWVsvWPem F21wTHb9Z/GH8XVakyUwVwE2NAIw0X8iQcM3Z+fwCdNSwuQuItsWH4BS29JT7COA 23X3KxDtI0WwB3uYAB6VuotYSRR9DakU9jaPEfJw8lnmbV8CMxn33lPxy/PH2IHq z37xC6wIGiEjZKiWyMa4MY5CXWitceljB1NLYO6+o7AcyHtLZggIoka+Z3kfHIym Bgj0tRnMULdZJx7zTPGKCHVUkQ564+Gmfji6ZjR+U+3JmjupkcM/j61a/2Bx6m/R 3l9XWs6eut+6FDYZUzmn5VPbDDvEGzw4r8cHY6n4iHjuoIOU1pbi1r1GlyVMN3F0 osw2+kkCKgUEtZjqZCp1jcZJZ0LYKQDQmQc5PWkMPAiIfLtAJ5PPSPOcpPwtXdNv ymPeaP7HCR35qCzY/zM8NVUNtPeWDRG/BjHpwwY7GZsv8oltzF1GgGVjo7v9kASg w4Fkq9UTTfHi1lA76vx8//hVkBvaZUlKwv+IWwObiUx8X3YtkxlGUKJpirSL4JeD ne52T7f3Ob1lf9QJCSzPDE7US8dkh3UgSRKGHeiDTNOiP2qG5DUEswUCiIKSbL36 FepQeQ087BUYLyw3VLl1K/yM8dNwpq/RbFSv/BJaoUu5ZEaUaGs= =7c10 -----END PGP SIGNATURE-----

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

other

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Apple

SOURCES

LAST UPDATE DATE

2024-08-14T12:36:36.882000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE