Critical: firefox security update
Security Advisory: Critical
Updated firefox packages that fix several security issues are now available
for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
Mozilla Firefox is an open source web browser. XULRunner provides the XUL
Runtime environment for Mozilla Firefox.
Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2013-0788)
A flaw was found in the way Same Origin Wrappers were implemented in
Firefox. A malicious site could use this flaw to bypass the same-origin
policy and execute arbitrary code with the privileges of the user running
Firefox. (CVE-2013-0795)
A flaw was found in the embedded WebGL library in Firefox. A web page
containing malicious content could cause Firefox to crash or, potentially,
execute arbitrary code with the privileges of the user running Firefox.
Note: This issue only affected systems using the Intel Mesa graphics
drivers. (CVE-2013-0796)
An out-of-bounds write flaw was found in the embedded Cairo library in
Firefox. A web page containing malicious content could cause Firefox to
crash or, potentially, execute arbitrary code with the privileges of the
user running Firefox. (CVE-2013-0800)
A flaw was found in the way Firefox handled the JavaScript history
functions. A malicious site could cause a web page to be displayed that has
a baseURI pointing to a different site, allowing cross-site scripting (XSS)
and phishing attacks. (CVE-2013-0793)
Red Hat would like to thank the Mozilla project for reporting these issues.
Upstream acknowledges Olli Pettay, Jesse Ruderman, Boris Zbarsky, Christian
Holler, Milan Sreckovic, Joe Drew, Cody Crews, miaubiz, Abhishek Arya, and
Mariusz Mlynski as the original reporters of these issues.
For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 17.0.5 ESR. You can find a link to the Mozilla
advisories in the References section of this erratum.
All Firefox users should upgrade to these updated packages, which contain
Firefox version 17.0.5 ESR, which corrects these issues. After installing
the update, Firefox must be restarted for the changes to take effect.
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258
Vulmon