Mozilla Firefox / Thunderbird Multiple Vulnerabilities

Multiple vulnerabilities have been identified in Mozilla Firefox and Thunderbird, which can be exploited by malicious people to disclose potentially sensitive information and compromise a user's system.

1. Some unspecified errors can be exploited to cause memory corruption.
2. A use-after-free error during cycle collection when animating SVG content, and when setting text directionality, can be exploited to cause memory corruption.
3. An error when decoding GIF images can be exploited to disclose uninitialized memory contents via specially crafted GIF files.
4. An out-of-bounds read error when creating an audio timeline in Web Audio can be exploited to disclose memory contents.