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RHSA-2010:0966: firefox security update

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RHSA-2010:0966: firefox security update



Mozilla Firefox is an open source web browser.Several flaws were found in the processing of malformed web content. A webpage containing malicious content could cause Firefox to crash or,potentially, execute arbitrary code with the privileges of the user runningFirefox. (CVE-2010-3766, CVE-2010-3767, CVE-2010-3772, CVE-2010-3776,CVE-2010-3777)A flaw was found in the way Firefox handled malformed JavaScript. A websitewith an object containing malicious JavaScript could cause Firefox toexecute that JavaScript with the privileges of the user running Firefox.(CVE-2010-3771)This update adds support for the Sanitiser for OpenType (OTS) library toFirefox. This library helps prevent potential exploits in malformedOpenType fonts by verifying the font file prior to use. (CVE-2010-3768)A flaw was found in the way Firefox loaded Java LiveConnect scripts.Malicious web content could load a Java LiveConnect script in a way thatwould result in the plug-in object having elevated privileges, allowing itto execute Java code with the privileges of the user running Firefox.(CVE-2010-3775)It was found that the fix for CVE-2010-0179 was incomplete when the Firebugadd-on was used. If a user visited a website containing maliciousJavaScript while the Firebug add-on was enabled, it could cause Firefox toexecute arbitrary JavaScript with the privileges of the user runningFirefox. (CVE-2010-3773)A flaw was found in the way Firefox presented the location bar to users. Amalicious website could trick a user into thinking they are visiting thesite reported by the location bar, when the page is actually contentcontrolled by an attacker. (CVE-2010-3774)A cross-site scripting (XSS) flaw was found in the Firefox x-mac-arabic,x-mac-farsi, and x-mac-hebrew character encodings. Certain characters wereconverted to angle brackets when displayed. If server-side script filteringmissed these cases, it could result in Firefox executing JavaScript codewith the permissions of a different website. (CVE-2010-3770)For technical details regarding these flaws, refer to the Mozilla securityadvisories for Firefox 3.6.13. You can find a link to the Mozillaadvisories in the References section of this erratum.All Firefox users should upgrade to these updated packages, which containFirefox version 3.6.13, which corrects these issues. After installing theupdate, Firefox must be restarted for the changes to take effect.


  • redhat-upgrade-firefox
  • redhat-upgrade-firefox-debuginfo
  • redhat-upgrade-xulrunner
  • redhat-upgrade-xulrunner-debuginfo
  • redhat-upgrade-xulrunner-devel

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