CVE-2022-1197

Al importar una clave revocada que especificaba el compromiso de la clave como motivo de revocación, Thunderbird no actualizaba la copia existente de la clave que aún no había sido revocada y la clave existente se mantenía como no revocada. Las declaraciones de revocación que utilizaban otro motivo de revocación o que no especificaban un motivo de revocación no se vieron afectadas. Esta vulnerabilidad afecta a Thunderbird < 91.8.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: When importing a revoked key that specified key compromise as the revocation reason, Thunderbird did not update the existing copy of the key that was not yet revoked, and the existing key was kept as non-revoked. Revocation statements that used another revocation reason, or that didn't specify a revocation reason, were unaffected.

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, conduct spoofing attacks, or execute arbitrary code. It was discovered that Thunderbird ignored OpenPGP revocation when importing a revoked key in some circumstances. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message or tricking them into use a revoked key to send an encrypted message.