Vulnerability CVE-2020-14954
Published: 2020-06-21

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."

Type:

CWE-74

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Neomutt -> Neomutt 
MUTT -> MUTT 
Debian -> Debian linux 

 References:
http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html
http://www.mutt.org/
https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc
https://github.com/neomutt/neomutt/releases/tag/20200619
https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4
https://gitlab.com/muttmua/mutt/-/issues/248
https://www.debian.org/security/2020/dsa-4707
https://www.debian.org/security/2020/dsa-4708
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