USN-717-1: Firefox and Xulrunner vulnerabilities
10 February 2009
firefox-3.0, xulrunner-1.9 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 8.10
- Ubuntu 8.04 LTS
Software Description
- firefox-3.0
- xulrunner-1.9
Details
Several flaws were discovered in the browser engine. These problems could allow an attacker to crash the browser and possibly execute arbitrary code with user privileges. (CVE-2009-0352, CVE-2009-0353)
A flaw was discovered in the JavaScript engine. An attacker could bypass the same-origin policy in Firefox by utilizing a chrome XBL method and execute arbitrary JavaScript within the context of another website. (CVE-2009-0354)
A flaw was discovered in the browser engine when restoring closed tabs. If a user were tricked into restoring a tab to a malicious website with form input controls, an attacker could steal local files on the user’s system. (CVE-2009-0355)
Wladimir Palant discovered that Firefox did not restrict access to cookies in HTTP response headers. If a user were tricked into opening a malicious web page, a remote attacker could view sensitive information. (CVE-2009-0357)
Paul Nel discovered that Firefox did not honor certain Cache-Control HTTP directives. A local attacker could exploit this to view private data in improperly cached pages of another user. (CVE-2009-0358)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 8.10
- abrowser - 3.0.6+nobinonly-0ubuntu0.8.10.1
- firefox-3.0 - 3.0.6+nobinonly-0ubuntu0.8.10.1
- xulrunner-1.9 - 1.9.0.6+nobinonly-0ubuntu0.8.10.1
- Ubuntu 8.04 LTS
- firefox-3.0 - 3.0.6+nobinonly-0ubuntu0.8.04.1
- xulrunner-1.9 - 1.9.0.6+nobinonly-0ubuntu0.8.04.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart Firefox and any applications that use xulrunner, such as Epiphany, to effect the necessary changes.