Gentoo Linux Security Advisory 201206-30 - An error in the hostname matching in sendmail might enable remote attackers to conduct man-in-the-middle attacks. Versions less than 8.14.4 are affected.
0825f570770528b4248fd45b3743b9fbHP Security Bulletin - A potential security vulnerability has been identified with HP-UX running sendmail and STARTTLS enabled. This vulnerability could allow a user to gain remote unauthorized access.
f42b0857d55d9dd40dd641634584e6ddDebian Linux Security Advisory 1985-1 - It was discovered that sendmail, a Mail Transport Agent, does not properly handle a '\\0' character in a Common Name (CN) field of an X.509 certificate. This allows an attacker to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority.
079a17fa8d5d399fecb93c8957fd2d86Mandriva Linux Security Advisory 2010-003 - sendmail before 8.14.4 does not properly handle a '\\0' (NUL) character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers. This update provides a fix for this vulnerability.
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