steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube" }, { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube-core" }, { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube-mysql" }, { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube-pgsql" }, { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube-plugins" }, { "binary_version": "1.3.6+dfsg.1-1", "binary_name": "roundcube-sqlite3" } ] }