This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. A download's origin may be incorrectly associated.
An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in visionOS 2.3.2, iOS 18.3.2 and iPadOS 18.3.2, macOS Sequoia 15.3.2, Safari 18.3.1, watchOS 11.4, iPadOS 17.7.6, iOS 16.7.11 and iPadOS 16.7.11, iOS 15.8.4 and iPadOS 15.8.4. Maliciously crafted web content may be able to break out of Web Content sandbox. This is a supplementary fix for an attack that was blocked in iOS 17.2. (Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 17.2.).
The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.
The HTTPS protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.
Safari in Apple iOS before 9.3.3 allows remote attackers to spoof the displayed URL via an HTTP response specifying redirection to an invalid TCP port number.
TelephonyUI Framework in Apple iOS 7 before 7.1, when Safari is used, does not require user confirmation for FaceTime audio calls, which allows remote attackers to obtain telephone number or e-mail address information via a facetime-audio: URL.
Apple Safari before 6.0.1 does not properly handle the Quarantine attribute of HTML documents, which allows user-assisted remote attackers to read arbitrary files by leveraging the presence of a downloaded document.
The Form Autofill feature in Apple Safari before 6.0.1 does not restrict the filled fields to the set of fields contained in an Autofill popover, which allows remote attackers to obtain the Me card from an Address Book via a crafted web site.
Apple Safari before 6.0.1 makes http requests for https URIs in certain circumstances involving a paste into the address bar, which allows user-assisted remote attackers to obtain sensitive information by sniffing the network.
Yahoo! Toolbar 1.0.0.5 and earlier for Chrome and Safari allows remote attackers to modify the configured search URL, and intercept search terms, via a crafted web page.