CVE-2018-12374

El texto plano de los emails descifrados puede ser filtrado por usuarios que envían un formulario embebido al presionar la tecla enter en un campo de introducción de texto. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.9.

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass CORS restrictions, obtain sensitive information, or execute arbitrary code. It was discovered that S/MIME and PGP decryption oracles can be built with HTML emails. An attacker could potentially exploit this to obtain sensitive information. Various other issues were also addressed.