A path handling issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to overwrite arbitrary files.

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2. An application may be able to read restricted memory.

A permissions issue existed. This issue was addressed with improved permission validation. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, watchOS 6.2. A malicious application may be able to elevate privileges.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to cause unexpected system termination or read kernel memory.

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.

A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to cause unexpected system termination or read kernel memory.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to cause unexpected system termination or read kernel memory.

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.4. A maliciously crafted application may be able to bypass code signing enforcement.

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

Multiple memory corruption issues were addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.4. An application may be able to execute arbitrary code with system privileges.

cups: heap based buffer overflow in libcups's ppdFindOption() in ppd-mark.c

A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. An application may be able to gain elevated privileges.

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra. A malicious application may be able to overwrite arbitrary files.

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to read arbitrary files.

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra. A malicious application may be able to execute arbitrary code with kernel privileges.

An injection issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A remote attacker may be able to cause arbitrary javascript code execution.