CVE-2020-15953
HIGH7.4EPSS 0.63%libetpan - security update
Published: 7/27/2020Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-15953
Description
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."
Affected packages (2)
- Debian/libetpanfrom 0, < 1.9.4-3
- Debian/libetpanfrom 0, < 1.6-3+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |