Mandriva Linux Security Advisory 2012-048 - Mutt does not verify that the smtps server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL SMTP server via an arbitrary certificate, a different vulnerability than CVE-2009-3766. The updated packages have been patched to correct this issue.
f39d53e6a1bd858ad8d3e9bea71a663fd9dd6cc3cd6f65b648a939ff4b8ab898Ubuntu Security Notice 1221-1 - It was discovered that mutt incorrectly verified the hostname in an SSL certificate. An attacker could trick mutt into trusting a rogue SMTPS, IMAPS, or POP3S server's certificate, which was signed by a trusted certificate authority, to perform a man-in-the-middle attack.
d5327d7489e79d924d92a0d60f8d9238e3cf7793305156d14665eb648ca81fecRed Hat Security Advisory 2011-0959-01 - Mutt is a text-mode mail user agent. A flaw was found in the way Mutt verified SSL certificates. When a server presented an SSL certificate chain, Mutt could ignore a server hostname check failure. A remote attacker able to get a certificate from a trusted Certificate Authority could use this flaw to trick Mutt into accepting a certificate issued for a different hostname, and perform man-in-the-middle attacks against Mutt's SSL connections. All Mutt users should upgrade to this updated package, which contains a backported patch to correct this issue. All running instances of Mutt must be restarted for this update to take effect.
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