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.Referenceshttps://usn.ubuntu.com/3719-3/https://www.debian.org/security/2018/dsa-4277https://gitlab.com/muttmua/mutt/commit/e0131852c6059107939893016c8ff56b6e42865dhttps://lists.debian.org/debian-lts-announce/2018/08/msg00001.htmlhttps://security.gentoo.org/glsa/201810-07http://www.mutt.org/news.htmlhttps://neomutt.org/2018/07/16/releasehttps://usn.ubuntu.com/3719-1/https://github.com/neomutt/neomutt/commit/65d64a5b60a4a3883f2cd799d92c6091d8854f23
