Multiple vulnerabilities have been reported in Mozilla Firefox,
Thunderbird, SeaMonkey and XULRunner, some of which may allow user-assisted
arbitrary remote code execution.
Background
Mozilla Firefox is an open-source web browser from the Mozilla Project,
and Mozilla Thunderbird an email client. The SeaMonkey project is a
community effort to deliver production-quality releases of code derived
from the application formerly known as the 'Mozilla Application Suite'.
XULRunner is a Mozilla runtime package that can be used to bootstrap
XUL+XPCOM applications like Firefox and Thunderbird.
Mozilla developers fixed several bugs, including an issue with
modifying XPCNativeWrappers (CVE-2007-3738), a problem with event
handlers executing elements outside of the document (CVE-2007-3737),
and a cross-site scripting (XSS) vulnerability (CVE-2007-3736). They
also fixed a problem with promiscuous IFRAME access (CVE-2007-3089) and
an XULRunner URL spoofing issue with the wyciwyg:// URI and HTTP 302
redirects (CVE-2007-3656). Denials of Service involving corrupted
memory were fixed in the browser engine (CVE-2007-3734) and the
JavaScript engine (CVE-2007-3735). Finally, another XSS vulnerability
caused by a regression in the CVE-2007-3089 patch was fixed
(CVE-2007-3844).
Impact
A remote attacker could entice a user to view a specially crafted web
page that will trigger one of the vulnerabilities, possibly leading to
the execution of arbitrary code or a Denial of Service. It is also
possible for an attacker to perform cross-site scripting attacks, which
could result in the exposure of sensitive information such as login
credentials.
Workaround
There is no known workaround at this time.
Resolution
All Mozilla Firefox users should upgrade to the latest version:
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.