Vulnerabilities

A number of security vulnerabilities in the Graphite 2 library including out-of-bounds reads, buffer overflow reads and writes, and the use of uninitialized memory.

Characters from the "Canadian Syllabics" unicode block can be mixed with characters from other unicode blocks in the addressbar instead of being rendered as their raw "punycode" form, allowing for domain name spoofing at…

An out-of-bounds read vulnerability with the Opus encoder when the number of channels in an audio stream changes while the encoder is in use.

A use-after-free vulnerability in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed.

A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR).

An out-of-bounds read in WebGL with a maliciously crafted "ImageInfo" object during WebGL operations.

A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events are handled.

A use-after-free vulnerability with content viewer listeners that results in a potentially exploitable crash.

A use-after-free vulnerability during video control operations when a "<track>" element holds a reference to an older window if that window has been replaced in the DOM.

A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell.

A use-after-free vulnerability with the frameloader during tree reconstruction while regenerating CSS layout when attempting to use a node in the tree that no longer exists.

Memory safety bugs were reported in Firefox 53 and Firefox ESR 52.1.