Critical: seamonkey security update

Updated seamonkey packages that fix several security issues are now
available for Red Hat Enterprise Linux 4.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

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 with the privileges of the user running
SeaMonkey. (CVE-2009-3072, CVE-2009-3075)

A use-after-free flaw was found in SeaMonkey. An attacker could use this
flaw to crash SeaMonkey or, potentially, execute arbitrary code with the
privileges of the user running SeaMonkey. (CVE-2009-3077)

Descriptions in the dialogs when adding and removing PKCS #11 modules were
not informative. An attacker able to trick a user into installing a
malicious PKCS #11 module could use this flaw to install their own
Certificate Authority certificates on a user's machine, making it possible
to trick the user into believing they are viewing a trusted site or,
potentially, execute arbitrary code with the privileges of the user running
SeaMonkey. (CVE-2009-3076)

A flaw was found in the way SeaMonkey displays the address bar when
window.open() is called in a certain way. An attacker could use this flaw
to conceal a malicious URL, possibly tricking a user into believing they
are viewing a trusted site. (CVE-2009-2654)

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.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

521311 - CVE-2009-2654 firefox: URL bar spoofing vulnerability
521688 - CVE-2009-3072 Firefox 3.5.3 3.0.14 browser engine crashes
521691 - CVE-2009-3075 Firefox 3.5.2 3.0.14 JavaScript engine crashes
521692 - CVE-2009-3076 Firefox 3.0.14 Insufficient warning for PKCS11 module installation and removal
521693 - CVE-2009-3077 Firefox 3.5.3 3.0.14 TreeColumns dangling pointer vulnerability

https://www.redhat.com/security/data/cve/CVE-2009-2654.html
https://www.redhat.com/security/data/cve/CVE-2009-3072.html
https://www.redhat.com/security/data/cve/CVE-2009-3075.html
https://www.redhat.com/security/data/cve/CVE-2009-3076.html
https://www.redhat.com/security/data/cve/CVE-2009-3077.html
http://www.redhat.com/security/updates/classification/#critical