An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/message.c has a stack-based buffer overflow for a FETCH response with a long RFC822.SIZE field.Referenceshttps://usn.ubuntu.com/3719-3/https://gitlab.com/muttmua/mutt/commit/3287534daa3beac68e2e83ca4b4fe8a3148ff870https://www.debian.org/security/2018/dsa-4277https://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://github.com/neomutt/neomutt/commit/1b0f0d0988e6df4e32e9f4bf8780846ea95d4485https://usn.ubuntu.com/3719-1/