(RHSA-2009:0437) Critical: seamonkey security update

SeaMonkey is an open source Web browser, email and newsgroup client, IRC
chat client, and HTML editor.

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-2009-1303, CVE-2009-1305)

Several flaws were found in the way malformed web content was processed. A
web page containing malicious content could execute arbitrary JavaScript in
the context of the site, possibly presenting misleading data to a user, or
stealing sensitive information such as login credentials. (CVE-2009-0652,
CVE-2009-1306, CVE-2009-1307, CVE-2009-1309, CVE-2009-1312)

A flaw was found in the way SeaMonkey saved certain web pages to a local
file. If a user saved the inner frame of a web page containing POST data,
the POST data could be revealed to the inner frame, possibly surrendering
sensitive information such as login credentials. (CVE-2009-1311)

All SeaMonkey users should upgrade to these updated packages, which correct
these issues. After installing the update, SeaMonkey must be restarted for
the changes to take effect.