The signature verification routine in the Airmail GPG-PGP Plugin, versions 1.0 (9) and previous versions, does not verify the status of the signature at all, which allows remote malicious users to spoof arbitrary email signatures by crafting a signed email with an invalid signature. Also, it does not verify the validity of the signing key, which allows remote malicious users to spoof arbitrary email signatures by crafting a key with a fake user ID (email address) and injecting it into the user's keyring.
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|---|---|---|
gpg-pgp project gpg-pgp |
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