The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A603
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A572
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2975
http://www.sendmail.org/8.12.10.html
http://www.redhat.com/support/errata/RHSA-2003-284.html
http://www.redhat.com/support/errata/RHSA-2003-283.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:092
http://www.kb.cert.org/vuls/id/784980
http://www.debian.org/security/2003/dsa-384
http://www.cert.org/advisories/CA-2003-25.html
http://marc.info/?l=bugtraq&m=106398718909274&w=2
http://marc.info/?l=bugtraq&m=106383437615742&w=2
http://marc.info/?l=bugtraq&m=106382859407683&w=2
http://marc.info/?l=bugtraq&m=106381604923204&w=2
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000742
http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0113.html
http://archives.neohapsis.com/archives/fulldisclosure/2003-q3/4119.html