Rapid7 Vulnerability & Exploit Database

RHSA-2009:0256: firefox security update

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RHSA-2009:0256: 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 as the user running Firefox.(CVE-2009-0352, CVE-2009-0353, CVE-2009-0356)Several flaws were found in the way malformed content was processed. Awebsite containing specially-crafted content could, potentially, trick aFirefox user into surrendering sensitive information. (CVE-2009-0354,CVE-2009-0355)A flaw was found in the way Firefox treated HTTPOnly cookies. An attackerable to execute arbitrary JavaScript on a target site using HTTPOnlycookies may be able to use this flaw to steal the cookie. (CVE-2009-0357)A flaw was found in the way Firefox treated certain HTTP page cachingdirectives. A local attacker could steal the contents of sensitive pageswhich the page author did not intend to be cached. (CVE-2009-0358)For technical details regarding these flaws, please see the Mozillasecurity advisories for Firefox 3.0.6. You can find a link to the Mozillaadvisories in the References section.All Firefox users should upgrade to these updated packages, which containFirefox version 3.0.6, which corrects these issues. After installing theupdate, Firefox must be restarted for the changes to take effect.


  • redhat-upgrade-firefox
  • redhat-upgrade-nss
  • redhat-upgrade-nss-devel
  • redhat-upgrade-nss-pkcs11-devel
  • redhat-upgrade-nss-tools
  • redhat-upgrade-xulrunner
  • redhat-upgrade-xulrunner-devel
  • redhat-upgrade-xulrunner-devel-unstable

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