Vulnerabilities

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

Video files loaded video captions cross-origin without checking for the presence of CORS headers permitting such cross-origin use, leading to potential information disclosure for video captions.

Using SVG filters that don't use the fixed point math implementation on a target iframe, a malicious page can extract pixel values from a targeted user.

Certain response codes in FTP connections can result in the use of uninitialized values for ports in FTP operations.

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.

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 Thunderbird 45.7.

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.

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 escalation.

URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar.

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

Hashed codes of JavaScript objects are shared between pages.

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 and Firefox ESR 45.6.