description: Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.
problem types: Covert Content Attack on S/MIME encryption using a crafted multipart/alternative message
affected:
{
product: Thunderbird
vendor: Mozilla
versions:
lessThan: 68.1, status: affected, version: unspecified, versionType: custom
lessThan: 60.9, status: affected, version: unspecified, versionType: custom
}