The vulnerabilities of the functions “Stealer::steal”, “Stealer::steal_batch”, and “Stealer::steal_batch_and_pop” in Mozilla Firefox, Firefox ESR, and the email client Thunderbird allow a malicious actor to execute arbitrary code.

The vulnerability of the functions “Stealer::steal”, “Stealer::stealbatch”, and “Stealer::stealbatchandpop” in browsers Mozilla Firefox, Firefox ESR, and the email client Thunderbird arises due to the simultaneous execution using a shared resource with incorrect synchronization. Exploiting this...