A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 13.1 and iPadOS 13.1, macOS Catalina 10.15. Parsing a maliciously crafted iBooks file may lead to a persistent denial-of-service.
A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15. An application may be able to execute arbitrary code with system privileges.
A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. A local attacker may be able to view contacts from the lock screen.
This issue was resolved by replacing device names with a random identifier. This issue is fixed in iOS 13.1 and iPadOS 13.1, macOS Catalina 10.15, watchOS 6, tvOS 13. An attacker in physical proximity may be able to passively observe device names in AWDL communications.
A validation issue was addressed with improved logic. This issue is fixed in macOS Catalina 10.15, iOS 13.1 and iPadOS 13.1, tvOS 13, watchOS 6, iOS 13. A local app may be able to read a persistent account identifier.
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006. An application may be able to execute arbitrary code with kernel privileges.
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15, iOS 13, iCloud for Windows 10.7, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, iCloud for Windows 7.14, iTunes 12.10.1 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
An input validation issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. An attacker in a privileged network position may be able to leak sensitive user information.
A denial of service issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. An attacker in a privileged position may be able to perform a denial of service attack.
A memory corruption issue existed in the handling of IPv6 packets. This issue was addressed with improved memory management. This issue is fixed in macOS Catalina 10.15, tvOS 13, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, watchOS 6, iOS 13. A malicious application may be able to determine kernel memory layout.