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." Reference: https://gitlab.com/muttmua/mutt/-/issues/248 Upstream commits: https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4 https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc
Created mutt tracking bugs for this issue: Affects: fedora-all [bug 1850171]
This has been fixed in following versions. Can we close this bug?
In reply to comment #4: > This has been fixed in following versions. Can we close this bug? Closed.