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RHSA-2009:0436: firefox security update

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RHSA-2009:0436: 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 as the user running Firefox.(CVE-2009-1302, CVE-2009-1303, CVE-2009-1304, CVE-2009-1305)Several flaws were found in the way malformed web content was processed. Aweb page containing malicious content could execute arbitrary JavaScript inthe context of the site, possibly presenting misleading data to a user, orstealing sensitive information such as login credentials. (CVE-2009-0652,CVE-2009-1306, CVE-2009-1307, CVE-2009-1308, CVE-2009-1309, CVE-2009-1310,CVE-2009-1312)A flaw was found in the way Firefox saved certain web pages to a localfile. If a user saved the inner frame of a web page containing POST data,the POST data could be revealed to the inner frame, possibly surrenderingsensitive information such as login credentials. (CVE-2009-1311)For technical details regarding these flaws, refer to the Mozilla securityadvisories for Firefox 3.0.9. You can find a link to the Mozilla advisoriesin the References section of this errata.All Firefox users should upgrade to these updated packages, which containFirefox version 3.0.9, which corrects these issues. After installing theupdate, Firefox must be restarted for the changes to take effect.


  • redhat-upgrade-firefox
  • redhat-upgrade-xulrunner
  • redhat-upgrade-xulrunner-devel
  • redhat-upgrade-xulrunner-devel-unstable

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