Evolution 2.2.x and 2.3.x in GNOME 2.7 and 2.8, when "load images if sender in addressbook" is enabled, allows remote attackers to cause a denial of service (persistent crash) via a crafted "From" header that triggers an assert error in camel-internet-address.c when a null pointer is used.
http://www.securityfocus.com/bid/18212
http://www.mandriva.com/security/advisories?name=MDKSA-2006:094