The remote sendmail server, according to its version number, may be vulnerable to a remote buffer overflow allowing remote users to gain root privileges. Sendmail versions from 5.79 to 8.12.7 are vulnerable.
Upgrade to Sendmail ver 8.12.8 or greater or if you cannot upgrade, apply patches for 8.10-12 here: http://www.sendmail.org/patchcr.html NOTE: manual patches do not change the version numbers. Vendors who have released patched versions of sendmail may still falsely show vulnerability. *** OVS reports this vulnerability using only *** the banner of the remote SMTP server. Therefore, *** this might be a false positive. see http://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21950 http://www.cert.org/advisories/CA-2003-07.html http://www.kb.cert.org/vuls/id/398025