CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
Percentile
34.6%
A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this issue of when an OpenPGP digital signature includes information about the date when the signature was created. When displaying an email that contains a digital signature, it will show the email’s date. If the dates were different, Thunderbird didn’t report the email as having an invalid signature. If an attacker performs a replay attack, in which an old email with old contents is present at a later time, it could lead the victim to believe that the statements in the email are current. Fixed versions of Thunderbird will require that the signature’s date roughly matches the displayed date of the email.