CVE-2018-12361

Puede ocurrir un desbordamiento de enteros en el código SwizzleData al calcular tamaños de búfer. El valor desbordado se emplea para posteriores cálculos de gráficos cuando sus entradas no se sanean, lo que resulta en un cierre inesperado potencialmente explotable. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 60, 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.