ID

VAR-202110-1622

CVE

CVE-2021-30846

TITLE

plural  Apple  Out-of-bounds write vulnerabilities in the product

DESCRIPTION

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution. plural Apple The product contains a vulnerability related to out-of-bounds writes.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. iOS 15 and iPadOS 15. For the oldstable distribution (buster), these problems have been fixed in version 2.34.1-1~deb10u1. For the stable distribution (bullseye), these problems have been fixed in version 2.34.1-1~deb11u1. We recommend that you upgrade your webkit2gtk packages. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15 tvOS 15 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212815. Accessory Manager 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 consumption issue was addressed with improved memory handling. CVE-2021-30837: an anonymous researcher bootp Available for: Apple TV 4K and Apple TV HD Impact: A device may be passively tracked by its WiFi MAC address Description: A user privacy issue was addressed by removing the broadcast MAC address. CVE-2021-30866: Fabien Duchêne of UCLouvain (Belgium) Entry added October 25, 2021 CoreAudio Available for: Apple TV 4K and Apple TV HD Impact: Processing a malicious audio file may result in unexpected application termination or arbitrary code execution Description: A logic issue was addressed with improved state management. CVE-2021-30834: JunDong Xie of Ant Security Light-Year Lab Entry added October 25, 2021 FontParser Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted font may result in the disclosure of process memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-30831: Xingwei Lin of Ant Security Light-Year Lab Entry added October 25, 2021 FontParser Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30840: Xingwei Lin of Ant Security Light-Year Lab Entry added October 25, 2021 FontParser Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30841: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30842: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30843: Xingwei Lin of Ant Security Light-Year Lab Foundation Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved memory handling. CVE-2021-30852: Yinyi Wu (@3ndy1) of Ant Security Light-Year Lab Entry added October 25, 2021 ImageIO Available for: Apple TV 4K and Apple TV HD Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2021-30814: hjy79425575 Entry added October 25, 2021 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-2021-30835: Ye Zhang of Baidu Security CVE-2021-30847: Mike Zhang of Pangu Lab 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 race condition was addressed with improved locking. CVE-2021-30857: Zweig of Kunlun Lab libexpat Available for: Apple TV 4K and Apple TV HD Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed by updating expat to version 2.4.1. CVE-2013-0340: an anonymous researcher Preferences Available for: Apple TV 4K and Apple TV HD Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: A logic issue was addressed with improved state management. CVE-2021-30854: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) Sandbox Available for: Apple TV 4K and Apple TV HD Impact: A user may gain access to protected parts of the file system Description: An access issue was addressed with improved access restrictions. CVE-2021-30850: an anonymous researcher Sandbox 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: This issue was addressed with improved checks. CVE-2021-30808: Csaba Fitzl (@theevilbit) of Offensive Security Entry added October 25, 2021 WebKit Available for: Apple TV 4K and Apple TV Impact: Visiting a maliciously crafted website may reveal a user's browsing history Description: The issue was resolved with additional restrictions on CSS compositing. CVE-2021-30884: an anonymous researcher Entry added October 25, 2021 WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved state handling. CVE-2021-30818: Amar Menezes (@amarekano) of Zon8Research Entry added October 25, 2021 WebKit Available for: Apple TV 4K and Apple TV HD Impact: An attacker in a privileged network position may be able to bypass HSTS Description: A logic issue was addressed with improved restrictions. CVE-2021-30823: David Gullasch of Recurity Labs Entry added October 25, 2021 WebKit 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 input validation. CVE-2021-30836: Peter Nguyen Vu Hoang of STAR Labs Entry added October 25, 2021 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-2021-30809: an anonymous researcher Entry added October 25, 2021 WebKit Available for: Apple TV 4K 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 memory handling. CVE-2021-30846: Sergei Glazunov 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-2021-30849: Sergei Glazunov of Google Project Zero WebKit Available for: Apple TV 4K and Apple TV HD Impact: Processing maliciously crafted web content may lead to code execution Description: A memory corruption vulnerability was addressed with improved locking. CVE-2021-30851: Samuel Groß of Google Project Zero Wi-Fi Available for: Apple TV 4K and Apple TV HD Impact: An attacker in physical proximity may be able to force a user onto a malicious Wi-Fi network during device setup Description: An authorization issue was addressed with improved state management. CVE-2021-30810: an anonymous researcher Additional recognition Assets We would like to acknowledge Cees Elzinga for their assistance. UIKit We would like to acknowledge an anonymous researcher 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 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----- iQIzBAEBCAAdFiEEePiLW1MrMjw19XzoeC9qKD1prhgFAmF4h08ACgkQeC9qKD1p rhhEthAAx/FURX2eeBUEs8f9b3gtic+n9doFTW1YozaTNM+/iDRtvk+Bo3UfLxsj hoSw+V4o4S9dDPAspKBDcAiW926pBAdJjdYHyeQnsLzlNQqTN/p5ITglsim9LU7Q rapY+JqaScfqgAwrlu7Y0kkII9rjOkOFK5wmZDkPSo8zbZftX9WRid6WmCwuf5E0 ljZhM3SRDobLoHI9691eAR1Nfl0NroQh51BTaYNzF/i64wYZdjZd2uwcs+U+GCUn pyXtYF42Z7NAymlrdC5u9jQALKDevpubluzsyTB8AZDOBAnOgMZsjHalHX9CBAYO N1S6J/FHE07rH8aWaDPUaU12ky/dl/5Zn+jycDG4SiTfK1HkL6FUvp+q9NnzM3jv 6Nm2doEaH+NRh/JW8wYaB1xmQK2gjHLHS2HPOV+1sW3rhkqqPbrl1e6doYL3ogfk AdwYFLJ3aEvufybukEUEktiVk9tLl56HTwZ+yMHC0fThzfssNWzp78Fny7MTTean TBKaqW3K7Ma5oAmy61srVlfQln7mhzqxZQh3URUADL21DqmTY4+khjTrxawUeGkh dwfJ7ee8+u5CXUcdtjhdnT+qnenEO2jA7ehzEuQ7FLuIIlfQGXJsHPWSFQBauaye msR+WcYRqGbpnBJBvkknqSjRLqUx1cBsFFBTdhVpYilkjbmWa0U= =1hbX -----END PGP SIGNATURE----- . CVE-2021-30851: Samuel Groß of Google Project Zero Installation note: This update may be obtained from the Mac App Store. Apple is aware of a report that this issue may have been actively exploited. Description: An integer overflow was addressed with improved input validation. CVE-2013-0340: an anonymous researcher Entry added September 20, 2021 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: An application may be able to access restricted files Description: A validation issue existed in the handling of symlinks. Apple is aware of a report that this issue may have been actively exploited. CVE-2021-30846: Sergei Glazunov of Google Project Zero Entry added September 20, 2021 Additional recognition CoreML We would like to acknowledge hjy79425575 working with Trend Micro Zero Day Initiative for their assistance. 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. Alternatively, on your watch, select "My Watch > General > About". - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202202-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: WebkitGTK+: Multiple vulnerabilities Date: February 01, 2022 Bugs: #779175, #801400, #813489, #819522, #820434, #829723, #831739 ID: 202202-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Multiple vulnerabilities have been found in WebkitGTK+, the worst of which could result in the arbitrary execution of code. Background ========= WebKitGTK+ is a full-featured port of the WebKit rendering engine, suitable for projects requiring any kind of web integration, from hybrid HTML/CSS applications to full-fledged web browsers. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/webkit-gtk < 2.34.4 >= 2.34.4 Description ========== Multiple vulnerabilities have been discovered in WebkitGTK+. Please review the CVE identifiers referenced below for details. Workaround ========= There is no known workaround at this time. Resolution ========= All WebkitGTK+ users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/webkit-gtk-2.34.4" References ========= [ 1 ] CVE-2021-30848 https://nvd.nist.gov/vuln/detail/CVE-2021-30848 [ 2 ] CVE-2021-30888 https://nvd.nist.gov/vuln/detail/CVE-2021-30888 [ 3 ] CVE-2021-30682 https://nvd.nist.gov/vuln/detail/CVE-2021-30682 [ 4 ] CVE-2021-30889 https://nvd.nist.gov/vuln/detail/CVE-2021-30889 [ 5 ] CVE-2021-30666 https://nvd.nist.gov/vuln/detail/CVE-2021-30666 [ 6 ] CVE-2021-30665 https://nvd.nist.gov/vuln/detail/CVE-2021-30665 [ 7 ] CVE-2021-30890 https://nvd.nist.gov/vuln/detail/CVE-2021-30890 [ 8 ] CVE-2021-30661 https://nvd.nist.gov/vuln/detail/CVE-2021-30661 [ 9 ] WSA-2021-0005 https://webkitgtk.org/security/WSA-2021-0005.html [ 10 ] CVE-2021-30761 https://nvd.nist.gov/vuln/detail/CVE-2021-30761 [ 11 ] CVE-2021-30897 https://nvd.nist.gov/vuln/detail/CVE-2021-30897 [ 12 ] CVE-2021-30823 https://nvd.nist.gov/vuln/detail/CVE-2021-30823 [ 13 ] CVE-2021-30734 https://nvd.nist.gov/vuln/detail/CVE-2021-30734 [ 14 ] CVE-2021-30934 https://nvd.nist.gov/vuln/detail/CVE-2021-30934 [ 15 ] CVE-2021-1871 https://nvd.nist.gov/vuln/detail/CVE-2021-1871 [ 16 ] CVE-2021-30762 https://nvd.nist.gov/vuln/detail/CVE-2021-30762 [ 17 ] WSA-2021-0006 https://webkitgtk.org/security/WSA-2021-0006.html [ 18 ] CVE-2021-30797 https://nvd.nist.gov/vuln/detail/CVE-2021-30797 [ 19 ] CVE-2021-30936 https://nvd.nist.gov/vuln/detail/CVE-2021-30936 [ 20 ] CVE-2021-30663 https://nvd.nist.gov/vuln/detail/CVE-2021-30663 [ 21 ] CVE-2021-1825 https://nvd.nist.gov/vuln/detail/CVE-2021-1825 [ 22 ] CVE-2021-30951 https://nvd.nist.gov/vuln/detail/CVE-2021-30951 [ 23 ] CVE-2021-30952 https://nvd.nist.gov/vuln/detail/CVE-2021-30952 [ 24 ] CVE-2021-1788 https://nvd.nist.gov/vuln/detail/CVE-2021-1788 [ 25 ] CVE-2021-1820 https://nvd.nist.gov/vuln/detail/CVE-2021-1820 [ 26 ] CVE-2021-30953 https://nvd.nist.gov/vuln/detail/CVE-2021-30953 [ 27 ] CVE-2021-30749 https://nvd.nist.gov/vuln/detail/CVE-2021-30749 [ 28 ] CVE-2021-30849 https://nvd.nist.gov/vuln/detail/CVE-2021-30849 [ 29 ] CVE-2021-1826 https://nvd.nist.gov/vuln/detail/CVE-2021-1826 [ 30 ] CVE-2021-30836 https://nvd.nist.gov/vuln/detail/CVE-2021-30836 [ 31 ] CVE-2021-30954 https://nvd.nist.gov/vuln/detail/CVE-2021-30954 [ 32 ] CVE-2021-30984 https://nvd.nist.gov/vuln/detail/CVE-2021-30984 [ 33 ] CVE-2021-30851 https://nvd.nist.gov/vuln/detail/CVE-2021-30851 [ 34 ] CVE-2021-30758 https://nvd.nist.gov/vuln/detail/CVE-2021-30758 [ 35 ] CVE-2021-42762 https://nvd.nist.gov/vuln/detail/CVE-2021-42762 [ 36 ] CVE-2021-1844 https://nvd.nist.gov/vuln/detail/CVE-2021-1844 [ 37 ] CVE-2021-30689 https://nvd.nist.gov/vuln/detail/CVE-2021-30689 [ 38 ] CVE-2021-45482 https://nvd.nist.gov/vuln/detail/CVE-2021-45482 [ 39 ] CVE-2021-30858 https://nvd.nist.gov/vuln/detail/CVE-2021-30858 [ 40 ] CVE-2021-21779 https://nvd.nist.gov/vuln/detail/CVE-2021-21779 [ 41 ] WSA-2021-0004 https://webkitgtk.org/security/WSA-2021-0004.html [ 42 ] CVE-2021-30846 https://nvd.nist.gov/vuln/detail/CVE-2021-30846 [ 43 ] CVE-2021-30744 https://nvd.nist.gov/vuln/detail/CVE-2021-30744 [ 44 ] CVE-2021-30809 https://nvd.nist.gov/vuln/detail/CVE-2021-30809 [ 45 ] CVE-2021-30884 https://nvd.nist.gov/vuln/detail/CVE-2021-30884 [ 46 ] CVE-2021-30720 https://nvd.nist.gov/vuln/detail/CVE-2021-30720 [ 47 ] CVE-2021-30799 https://nvd.nist.gov/vuln/detail/CVE-2021-30799 [ 48 ] CVE-2021-30795 https://nvd.nist.gov/vuln/detail/CVE-2021-30795 [ 49 ] CVE-2021-1817 https://nvd.nist.gov/vuln/detail/CVE-2021-1817 [ 50 ] CVE-2021-21775 https://nvd.nist.gov/vuln/detail/CVE-2021-21775 [ 51 ] CVE-2021-30887 https://nvd.nist.gov/vuln/detail/CVE-2021-30887 [ 52 ] CVE-2021-21806 https://nvd.nist.gov/vuln/detail/CVE-2021-21806 [ 53 ] CVE-2021-30818 https://nvd.nist.gov/vuln/detail/CVE-2021-30818 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202202-01 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2022 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

buffer error

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Apple

SOURCES

LAST UPDATE DATE

2026-08-17T23:04:28.623000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE