SeaMonkey is an open source Web browser, email and newsgroup client, IRCchat client, and HTML editor.Several flaws were found in the processing of malformed web content. A webpage containing malicious content could cause SeaMonkey to crash or,potentially, execute arbitrary code as the user running SeaMonkey.(CVE-2008-5500, CVE-2008-5501, CVE-2008-5502, CVE-2008-5504, CVE-2008-5511,CVE-2008-5512, CVE-2008-5513)Several flaws were found in the way malformed content was processed. Awebsite containing specially-crafted content could potentially trick aSeaMonkey user into surrendering sensitive information. (CVE-2008-5503,CVE-2008-5506, CVE-2008-5507)A flaw was found in the way malformed URLs were processed by SeaMonkey.This flaw could prevent various URL sanitization mechanisms from properlyparsing a malicious URL. (CVE-2008-5508)Note: after the errata packages are installed, SeaMonkey must be restartedfor the update to take effect.All SeaMonkey users should upgrade to these updated packages, which containbackported patches to resolve these issues.