||Seamonkey has multiple vulnerabilities.
From the Red Hat alert:
Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause SeaMonkey to crash or,
potentially, execute arbitrary code as the user running SeaMonkey.
(CVE-2008-0017, CVE-2008-5013, CVE-2008-5014, CVE-2008-5016,
CVE-2008-5017, CVE-2008-5018, CVE-2008-5019, CVE-2008-5021)
Several flaws were found in the way malformed content was processed. A web
site containing specially-crafted content could potentially trick a
SeaMonkey user into surrendering sensitive information. (CVE-2008-5012,
CVE-2008-5022, CVE-2008-5023, CVE-2008-5024)