OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version 2.4.6 has a patch for this issue.

A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.

A privacy issue was addressed by moving sensitive data to a more secure location. This issue is fixed in macOS Ventura 13.3. An app may be able to access user-sensitive data.

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to view sensitive information.

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.6 and iPadOS 15.7.6, macOS Monterey 12.6.4, macOS Big Sur 11.7.7, tvOS 16.4, watchOS 9.4. An app may be able to execute arbitrary code with kernel privileges.

A denial-of-service issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3. A user in a privileged network position may be able to cause a denial-of-service.

A race condition was addressed with improved locking. This issue is fixed in macOS Ventura 13.3. An app may bypass Gatekeeper checks.

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An archive may be able to bypass Gatekeeper.

This issue was addressed with a new entitlement. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to break out of its sandbox.

This issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. Files downloaded from the internet may not have the quarantine flag applied.

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.5, macOS Monterey 12.6.4, tvOS 16.4, watchOS 9.4. An app may be able to access user-sensitive data.

A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Ventura 13.3, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to disclose kernel memory.

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.5, macOS Monterey 12.6.4, tvOS 16.4, watchOS 9.4. Parsing a maliciously crafted plist may lead to an unexpected app termination or arbitrary code execution.

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to cause unexpected system termination or write kernel memory.

The issue was addressed with improved bounds checks. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. A remote user may be able to cause unexpected app termination or arbitrary code execution.

A memory initialization issue was addressed. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Monterey 12.6.4, tvOS 16.4, watchOS 9.4. An app with root privileges may be able to execute arbitrary code with kernel privileges.

This issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, tvOS 16.4, watchOS 9.4. Processing maliciously crafted web content may bypass Same Origin Policy.

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.3, tvOS 16.4, watchOS 9.4. An app may be able to access user-sensitive data.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, tvOS 16.4, iOS 16.4 and iPadOS 16.4, watchOS 9.4. Processing a maliciously crafted image may result in disclosure of process memory.