CVE-2020-14954
Medium
Description
Mutt before 1.14.4 and NeoMutt before 2020-06-19 have 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 man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."
SeverityMedium
CVSS5.9
Exploit probability—
Product
Mutt
PublishedJun 21, 2020
First seenJun 21, 2020
How to fix
Update
- mutt mutt1.14.4 or later
- neomutt neomutt20200619 or later
Vendor advisories
- debian.org/security/2020/dsa-4707
- debian.org/security/2020/dsa-4708
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ/
- usn.ubuntu.com/4403-1/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFMEILCBKMZRRZDMUGWLVN4PQQ4VTAZE/
- security.gentoo.org/glsa/202007-57
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mutt mutt | v < 1.14.4 | 1.14.4 |
| debian debian_linux | 9.0, 10.0, 8.0 | — |
| neomutt neomutt | v < 20200619 | 20200619 |
| fedoraproject fedora | 31, 32 | — |
| canonical ubuntu_linux | 12.04, 16.04, 18.04, 19.10, 20.04 | — |
| opensuse leap | 15.1, 15.2 | — |
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