libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL. If told to use an unknown/bad cipher or curve, the error path accidentally skips the verification and returns OK, thus ignoring any certificate problems.
When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.
libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).
The issue was addressed with improved UI handling. This issue is fixed in tvOS 17.4, macOS Sonoma 14.4, visionOS 1.1, iOS 17.4 and iPadOS 17.4, watchOS 10.4, Safari 17.4. A malicious website may exfiltrate audio data cross-origin.
A logic issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. An app may be able to access user-sensitive data.
A type confusion issue was addressed with improved checks. This issue is fixed in iOS 17.3 and iPadOS 17.3, macOS Sonoma 14.3, tvOS 17.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited.
The issue was addressed with additional permissions checks. This issue is fixed in macOS Sonoma 14.3, iOS 17.3 and iPadOS 17.3. A shortcut may be able to use sensitive data with certain actions without prompting the user.
The issue was addressed with additional permissions checks. This issue is fixed in macOS Sonoma 14.3, watchOS 10.3, iOS 17.3 and iPadOS 17.3. A shortcut may be able to use sensitive data with certain actions without prompting the user.
An access issue was addressed with improved access restrictions. This issue is fixed in watchOS 10.3, tvOS 17.3, iOS 17.3 and iPadOS 17.3, macOS Sonoma 14.3, iOS 16.7.5 and iPadOS 16.7.5, Safari 17.3. A maliciously crafted webpage may be able to fingerprint the user.