RHSA-2017:1561

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.

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).

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.

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.

Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Silf::readGraphite function.

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

Heap-based Buffer Overflow write in Graphite2 library in Firefox before 54 in lz4::decompress src/Decompressor.

Heap-based Buffer Overflow in Graphite2 library in Firefox before 54 in lz4::decompress function.

Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph function.

Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.

Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Pass::readPass function.

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

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…