Vulnerability 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."
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mutt | Mutt | < 1.14.4 |
| Debian | Debian Linux | 9.0 |
| Neomutt | Neomutt | < 20200619 |
| Fedoraproject | Fedora | 31 |
| Canonical | Ubuntu Linux | 12.04 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.htmlMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.htmlThird Party Advisory
- http://www.mutt.org/Product
- https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639Patch
- https://github.com/neomutt/neomutt/releases/tag/20200619Release Notes
- https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ffPatch
- https://gitlab.com/muttmua/mutt/-/issues/248Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00039.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00040.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202007-57Third Party Advisory
- https://usn.ubuntu.com/4403-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4707Third Party Advisory
FAQ
What is CVE-2020-14954?
CVE-2020-14954 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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., ...
How severe is CVE-2020-14954?
CVE-2020-14954 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14954?
Check the references section above for vendor advisories and patch information. Affected products include: Mutt Mutt, Debian Debian Linux, Neomutt Neomutt, Fedoraproject Fedora, Canonical Ubuntu Linux.