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RHSA-2015:0766: firefox security update

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RHSA-2015:0766: firefox security update



Mozilla Firefox is an open source web browser. XULRunner provides the XULRuntime environment for Mozilla Firefox.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-2015-0813, CVE-2015-0815, CVE-2015-0801)A flaw was found in the way documents were loaded via resource URLs in, forexample, Mozilla's PDF.js PDF file viewer. An attacker could use this flawto bypass certain restrictions and under certain conditions even executearbitrary code with the privileges of the user running Firefox.(CVE-2015-0816)A flaw was found in the Beacon interface implementation in Firefox. A webpage containing malicious content could allow a remote attacker to conducta Cross-Site Request Forgery (CSRF) attack. (CVE-2015-0807)Red Hat would like to thank the Mozilla project for reporting these issues.Upstream acknowledges Christian Holler, Byron Campen, Steve Fink, MariuszMlynski, Christoph Kerschbaumer, Muneaki Nishimura, Olli Pettay, BorisZbarsky, and Aki Helin as the original reporters of these issues.All Firefox users should upgrade to these updated packages, which containFirefox version 31.6.0 ESR, which corrects these issues. After installingthe update, 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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