LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-74,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| libetpan_project | libetpan | * |
| fedoraproject | fedora | 32 |
| libmailcore | mailcore2 | * |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 31 |
core/imap/MCIMAPSession.cpp in Canary Mail before 3.22 has Missing SSL Certificate Validation for IMAP in STARTTLS mode.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 7.4 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | 2.2 | 5.2 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-295,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| canarymail | canary_mail | 3.21 |
| canarymail | canary_mail | 3.20 |
| libmailcore | mailcore2 | 0.6.4 |