CVE-2021-38373
In KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless "Server requires authentication" is checked.
- Update to 21.12.3-2
Published Updated
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Vulnerabilities published for ksmtp in the last 30 days: 0. Listed in the KEV catalogue: 0.
Vulnerabilities: 2
In KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless "Server requires authentication" is checked.
KDE KMail 19.12.3 (aka 5.13.3) engages in unencrypted POP3 communication during times when the UI indicates that encryption is in use.
Check your installed stack and versions against the current vulnerability feeds.