Stack-based buffer overflow in expires.c in Elm 2.5 PL5 through PL7, and possibly other versions, allows remote attackers to execute arbitrary code via an e-mail message with a long Expires header.

Buffer overflow in the frm command in elm 2.5.6 and earlier, and possibly later versions, allows remote attackers to execute arbitrary code via a long Subject line.

Elm ME+ 2.4 before PL109S, when installed setgid mail and the operating system lacks POSIX saved ID support, allows local users to read and modify certain files with the privileges of the mail group via unspecified vectors.

Buffer overflow in Elm 2.5.5 and earlier allows remote attackers to execute arbitrary code via a long Message-ID header.

Multiple buffer overflows in filter command in Elm 2.4 allows attackers to execute arbitrary commands via (1) long From: headers, (2) long Reply-To: headers, or (3) via a long -f (filterfile) command line argument.

Local users can execute commands as other users, and read other users' files, through the filter command in the Elm elm-2.4 mail package using a symlink attack.

Buffer overflow in Elm 2.4 and earlier allows local users to gain privileges via a long TERM environmental variable.