CVE-2018-12369

Las WebExtensions incluidas con los experimentos embebidos no se comprobaron correctamente en busca de una autorización adecuada. Esto permitía que una WebExtension maliciosa obtenga los permisos totales del navegador. La vulnerabilidad afecta a Firefox ESR en versiones anteriores a la 60.1 y Firefox en versiones anteriores a la 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.