APPLE-SA-2021-04-26-6 tvOS 14.5
APPLE-SA-2021-04-26-6 tvOS 14.5
- Subject: APPLE-SA-2021-04-26-6 tvOS 14.5
- From: Apple Product Security via Security-announce <email@hidden>
- Date: Mon, 26 Apr 2021 15:51:46 -0700
- Original-recipient: rfc822;email@hidden
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
APPLE-SA-2021-04-26-6 tvOS 14.5
tvOS 14.5 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT212323.
AppleMobileFileIntegrity
Available for: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: 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-2021-1846: JunDong Xie of Ant Security Light-Year Lab
CoreAudio
Available for: Apple TV 4K and Apple TV HD
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
CoreText
Available for: Apple TV 4K and Apple TV HD
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
FontParser
Available for: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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
Heimdal
Available for: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: 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 bounds
checking.
CVE-2021-1885: CFF of Topsec Alpha Team
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-2021-30653: Ye Zhang of Baidu Security
CVE-2021-1843: Ye Zhang 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: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2021-1858: Mickey Jin of Trend Micro
iTunes Store
Available for: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: 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-2021-1851: @0xalsr
Kernel
Available for: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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: Apple TV 4K and Apple TV HD
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
Preferences
Available for: Apple TV 4K and Apple TV HD
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)
Tailspin
Available for: Apple TV 4K and Apple TV HD
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
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
validation.
CVE-2021-1844: Clément Lecigne of Google’s Threat Analysis Group,
Alison Huffman of Microsoft Browser Vulnerability Research
WebKit
Available for: Apple TV 4K and Apple TV HD
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: 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
state management.
CVE-2021-1817: an anonymous researcher
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 restrictions.
CVE-2021-1826: an anonymous researcher
WebKit
Available for: Apple TV 4K and Apple TV HD
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: 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.
Description: A use after free issue was addressed with improved
memory management.
CVE-2021-30661: yangkang(@dnpushme) of 360 ATA
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-----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=iii4
-----END PGP SIGNATURE-----
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Security-announce mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden