Security update for Mozilla Firefox (critical)

Mozilla Firefox was updated to 3.6.28 to fix various bugs
and security issues.

The following security issues have been fixed:

MFSA 2012-19: Mozilla developers identified and fixed
several memory safety bugs in the browser engine used in
Firefox and other Mozilla-based products. Some of these
bugs showed evidence of memory corruption under certain
circumstances, and we presume that with enough effort at
least some of these could be exploited to run arbitrary
code.

In general these flaws cannot be exploited through
email in the Thunderbird and SeaMonkey products because
scripting is disabled, but are potentially a risk in
browser or browser-like contexts in those products.
References

Bob Clary reported two bugs that causes crashes that
affected Firefox 3.6, Firefox ESR, and Firefox 10.
CVE-2012-0461

Christian Holler, Jesse Ruderman, Nils, Michael
Bebenita, Dindog, and David Anderson reported memory safety
problems and crashes that affect Firefox ESR and Firefox
10. CVE-2012-0462

Jeff Walden reported a memory safety problem in the
array.join function. This bug was independently reported by
Vincenzo Iozzo via TippingPoint’s Zero Day Initiative
Pwn2Own contest. CVE-2012-0464

Masayuki Nakano reported a memory safety problem that
affected Mobile Firefox 10. CVE-2012-0463

MFSA 2012-16 / CVE-2012-0458: Security researcher
Mariusz Mlynski reported that an attacker able to convince
a potential victim to set a new home page by dragging a
link to the "home" button can set that user’s home page to
a javascript: URL. Once this is done the attacker’s page
can cause repeated crashes of the browser, eventually
getting the script URL loaded in the privileged
about:sessionrestore context.

MFSA 2012-14 / CVE-2012-0457 / CVE-2012-0456:
Security researcher Atte Kettunen from OUSPG found two
issues with Firefox’s handling of SVG using the Address
Sanitizer tool. The first issue, critically rated, is a
use-after-free in SVG animation that could potentially lead
to arbitrary code execution. The second issue is rated
moderate and is an out of bounds read in SVG Filters. This
could potentially incorporate data from the user’s memory,
making it accessible to the page content.

MFSA 2012-13 / CVE-2012-0455: Firefox prevents the
dropping of javascript: links onto a frame to prevent
malicious sites from tricking users into performing a
cross-site scripting (XSS) attacks on themselves. Security
researcher Soroush Dalili reported a way to bypass this
protection.

The full overview can be found on Mozillas security page
at: <a href=“http://www.mozilla.org/security/announce/”>http://www.mozilla.org/security/announce/</a>
<<a href=“http://www.mozilla.org/security/announce/”>http://www.mozilla.org/security/announce/</a>>