CVE-2018-12371

Una vulnerabilidad de desbordamiento de enteros en la biblioteca Skia al asignar memoria para constructores de bordes en algunos sistemas con al menos 16 GB de RAM. Esto resulta en el uso de memoria no inicializada, resultando en un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 60.1, Thunderbird versiones anteriores a 60 y Firefox versiones anteriores a 61

USN-3705-1 fixed vulnerabilities in Firefox. The update introduced various minor regressions. This update fixes the problems. 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, read uninitialized memory, bypass same-origin restrictions, bypass CORS restrictions, bypass CSRF protections, obtain sensitive information, or execute arbitrary code. A security issue was discovered with WebExtensions. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit this to obtain full browser permissions. Various other issues were also addressed.