Memory corruption in libjar through zip files — Mozilla

Security researcher Gustavo Grieco reported a buffer underflow in libjar triggered through a maliciously crafted ZIP format file. This results in a potentially exploitable crash...

Updated gdk-pixbuf2.0 packages fix security vulnerabilities

Updated gdk-pixbuf packages fix security vulnerabilities: Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf before 2.32.0. This issue is triggered by the scaling of a malformed tga format image and results in a potentially exploitable crash CVE-2015-7673. Security research...

Buffer overflow while decoding WebM video — Mozilla

Using the Address Sanitizer tool, security researcher Atte Kettunen discovered a buffer overflow in the nestegg library when decoding a WebM format video with maliciously formatted headers. This leads to a potentially exploitable crash...

Use-after-free with shared workers and IndexedDB — Mozilla

Security researcher Looben Yang discovered a use-after-free vulnerability when using a shared worker with IndexedDB due to a race condition with the worker. This results in a potentially exploitable crash that can be triggered through web content...

Buffer overflow in libvpx while parsing vp9 format video — Mozilla

Security researcher Khalil Zhani reported that a maliciously crafted vp9 format video could be used to trigger a buffer overflow while parsing the file. This leads to a potentially exploitable crash due to a flaw in the libvpx library...

Memory safety errors in libGLES in the ANGLE graphics library — Mozilla

Security researcher Ronald Crane reported two issues in the libGLES portions of the ANGLE graphics library, used for WebGL and OpenGL content on Windows systems. The first of these is a missing bounds check leading to memory safety errors when manipulating shaders which could result in the writin...

Updated gdk-pixbuf2.0 package fixes security vulnerability

Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf. This issue is triggered by the scaling of a malformed bitmap format image and results in a potentially exploitable crash CVE-2015-4491...

Out-of-bounds read with malformed MP3 file — Mozilla

Security researcher Aki Helin used the Address Sanitizer tool to discover an out-of-bounds read during playback of a malformed MP3 format audio file which switches sample formats. This could trigger a potentially exploitable crash or the reading of out-of-bounds memory content in some circumstanc...

Out-of-bounds write with Updater and malicious MAR file — Mozilla

Security researcher Holger Fuhrmannek reported that if the Updater opens a MAR format file with a specially crafted name, an out-of-bounds write will occur. This can lead to a potentially exploitable crash but requires that the malicious MAR format file be present on the local system and the...

Vulnerabilities found through code inspection — Mozilla

Security researcher Ronald Crane reported seven vulnerabilities affecting released code that he found through code inspection. These included three uses of uninitialized memory, one poor validation leading to an exploitable crash, one read of unowned memory in zip files, and two buffer overflows...

Type confusion in Indexed Database Manager — Mozilla

Security researcher Paul Bandha reported a type confusion error where part of IDBDatabase is read by the Indexed Database Manager and incorrectly used as a pointer when it shouldn't be used as such. This leads to memory corruption and the possibility of an exploitable crash...

Use-after-free in Content Policy due to microtask execution error — Mozilla

Security researcher Herre reported a use-after-free vulnerability when a Content Policy modifies the Document Object Model to remove a DOM object, which is then used afterwards due to an error in microtask implementation. This leads to an exploitable crash...

Use-after-free due to Media Decoder Thread creation during shutdown — Mozilla

Security researchers Tyson Smith and Jesse Schwartzentruber reported a use-after-free during the shutdown process. This was caused by a race condition when media decoder threads are created during the shutdown process in some circumstances. This leads to a potentially exploitable crash when...

Buffer overflow parsing H.264 video with Linux Gstreamer — Mozilla

Security researcher Aki Helin used the Address Sanitizer tool to find a buffer overflow during video playback on Linux systems. This was due to a problem in older versions of the Gstreamer plugin during the parsing of H.264 formatted video. This issue could be used to induce a possibly exploitabl...

Use-after-free during text processing with vertical text enabled — Mozilla

Security researcher Scott Bell used the Address Sanitizer tool to discover a use-after-free error during the processing of text when vertical text is enabled. This leads to a potentially exploitable crash...

Buffer overflow with SVG content and CSS — Mozilla

Using the Address Sanitizer tool, security researcher Atte Kettunen found a buffer overflow during the rendering of SVG format graphics when combined with specific CSS properties on a page. This results in a potentially exploitable crash...

Out-of-bounds read and write in asm.js validation — Mozilla

Security researcher Dougall Johnson reported an out-of-bounds read and write in asm.js during JavaScript validation due to an error in how heap lengths are defined. This results in a potentially exploitable crash and could allow for the reading of random memory which may contain sensitive data...

Buffer overflow and out-of-bounds read while parsing MP4 video metadata — Mozilla

Security researcher laf.intel reported a buffer overflow and out-of-bounds read in the libstagefright library while parsing invalid metadata in MPEG4 video files. This can lead to a potentially exploitable crash...

Double-free when using non-default memory allocators with a zero-length XHR — Mozilla

Security researcher Abhishek Arya Inferno of the Google Chrome Security Team and Mozilla security developer Gary Kwong used the Address Sanitizer tool to discover a double-free error when sending a zero-length XmlHttpRequest XHR. This was due to errors in memory allocation when using different...

Use-after-free in IndexedDB — Mozilla

Security researcher Paul Bandha used the used the Address Sanitizer tool to discover a use-after-free vulnerability when running specific web content with IndexedDB to create an index. This leads to a potentially exploitable crash...