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

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

Fixed potential buffer overflows in generated Firefox code due to CVE-2016-6354 issue in Flex

During DOM manipulations of the accessibility tree through script, the DOM tree can become out of sync with the accessibility tree, leading to memory corruption and a potentially…

A use-after-free vulnerability in frame selection triggered by a combination of malicious script content and key presses by a user

A buffer overflow in WebGL triggerable by web content, resulting in a potentially exploitable crash

A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message

An out-of-bounds read when an HTTP/2 connection to a servers sends "DATA" frames with incorrect data content

An out-of-bounds write vulnerability while decoding improperly formed BinHex format archives

A use-after-free vulnerability during changes in style when manipulating DOM elements

A use-after-free vulnerability when holding a selection during scroll events

A use-after-free vulnerability during XSLT processing due to a failure to propagate error conditions during matching while evaluating context, leading to objects being used when…

A use-after-free vulnerability during XSLT processing due to poor handling of template parameters

A use-after-free vulnerability during XSLT processing due to the result handler being held by a freed handler during handling

A use-after-free vulnerability occurs during transaction processing in the editor during design mode interactions

A use-after-free vulnerability occurs when redirecting focus handling which results in a potentially exploitable crash

A use-after-free vulnerability in SMIL animation functions occurs when pointers to animation elements in an array are dropped from the animation controller while still in use

A use-after-free vulnerability occurs during certain text input selection resulting in a potentially exploitable crash

Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52

Memory safety bugs were reported in Firefox 52, Firefox ESR 45.8, Firefox ESR 52, and Thunderbird 52

An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest

A segmentation fault can occur during some bidirectional layout operations

Memory corruption resulting in a potentially exploitable crash during garbage collection of JavaScript due errors in how incremental sweeping is managed for memory cleanup

A use-after-free error can occur when manipulating ranges in selections with one node inside a native anonymous tree and one node outside of it

When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object

A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts

A crash triggerable by web content in which an "ErrorResult" references unassigned memory due to a logic error

JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory corruption attacks

Memory safety bugs were reported in Firefox 51

Memory safety bugs were reported in Thunderbird 45.7

The cache directory on the local file system is set to be world writable

A use-after-free vulnerability in the Media Decoder when working with media files when some events are fired after the media elements are freed from memory

Weak proxy objects have weak references on multiple threads when they should only have them on one, resulting in incorrect memory usage and corruption, which leads to potentially…

Special "about:" pages used by web content, such as RSS feeds, can load privileged "about:" pages in an iframe

The JSON viewer in the Developer Tools uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege…

A potential use-after-free found through fuzzing during DOM manipulation of SVG content

A memory corruption vulnerability in Skia that can occur when using transforms to make gradients, resulting in a potentially exploitable crash

Use-after-free while manipulating XSL in XSLT documents

JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks

Memory safety bugs were reported in Firefox 50.1

Memory safety bugs were reported in Firefox 50.1 and Firefox ESR 45.6

HTML tags received from the Pocket server will be processed without sanitization and any JavaScript code executed will be run in the "about:pocket-saved" (unprivileged) page,…

Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption

Use-after-free resulting in potentially exploitable crash when manipulating DOM subtrees in the Editor

Memory safety bugs were reported in Thunderbird 45.5

Memory safety bugs were reported in Firefox 50.0.2

An issue where WebExtensions can use the mozAddonManager API to elevate privilege due to privileged pages being allowed in the permissions list

An error in argument length checking in JavaScript, leading to potential integer overflows or other bounds checking issues