CVE-2022-0566

Es posible que un atacante cree un mensaje de correo electrónico que haga que Thunderbird realice una escritura fuera de los límites de un byte al procesar el mensaje. Esta vulnerabilidad afecta a Thunderbird < 91.6.1.

A flaw was found in Thunderbird. The vulnerability occurs due to an out-of-bounds write of one byte when processing the message. This flaw allows an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass security restrictions, obtain sensitive information, cause undefined behaviour, spoof the browser UI, or execute arbitrary code. It was discovered that extensions of a particular type could auto-update themselves and bypass the prompt that requests permissions. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to bypass security restrictions.