An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap_quote_string in imap/util.c has an integer underflow. References: http://www.mutt.org/news.html Upstream Patch: https://gitlab.com/muttmua/mutt/commit/e0131852c6059107939893016c8ff56b6e42865d
Created mutt tracking bugs for this issue: Affects: fedora-all [bug 1604041]