The vulnerability of Thunderbird email client, Firefox and Firefox ESR browsers, related to the use of memory after it is freed due to the “race condition” during audio playback, allows a hacker to create a specially crafted sound shell, trigger a use-after-free error, and execute arbitrary code within the system.

The vulnerability of the Thunderbird email client, as well as browsers Firefox and Firefox ESR, is related to the use of memory after it is freed due to a race condition during the playback of audio files. Exploiting this vulnerability can allow an attacker to create a specially crafted sound...