CVE-2019-11709

Los desarrolladores de Mozilla y los miembros de la comunidad reportaron bugs de seguridad de memoria presentes en Firefox versión 67 y Firefox ESR versión 60.7. Algunos de estos errores mostraron evidencias de corrupción de memoria y presumimos que, con el esfuerzo suficiente, algunos de estos podrían explotarse para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox ESR anterior a versión 60.8, Firefox anterior a versión 68 y Thunderbird anterior a versión 60.8.

A sandbox escape was discovered in Firefox. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass same origin restrictions, conduct cross-site scripting attacks, conduct cross-site request forgery attacks, spoof origin attributes, spoof the addressbar contents, bypass safebrowsing protections, or execute arbitrary code. Various other issues were also addressed.