Ubuntu 10.10: 1251-1 Moderate: Firefox and Xulrunner Exploits

ubuntu

November 10, 2011

Multiple vulnerabilities have been fixed in Firefox and Xulrunner.

Summary

Multiple vulnerabilities have been fixed in Firefox and Xulrunner.

Software Description:

- firefox: Mozilla Open Source web browser

- xulrunner-1.9.2: Mozilla Gecko runtime environment

Details:

It was discovered that CVE-2011-3004, which addressed possible privilege

escalation in addons, also affected Firefox 3.6. An attacker could

potentially exploit Firefox when an add-on was installed that used

loadSubscript in vulnerable ways. (CVE-2011-3647)

Yosuke Hasegawa discovered that the Mozilla browser engine mishandled

invalid sequences in the Shift-JIS encoding. A malicious website could

possibly use this flaw this to steal data or inject malicious scripts into

web content. (CVE-2011-3648)

Marc Schoenefeld discovered that using Firebug to profile a JavaScript file

with many functions would cause Firefox to crash. An attacker might be able

to exploit this without using the debugging APIs which would potentially

allow an attacker to remotely crash the browser....

Read the Full Advisory

Topics Covered

security advisory moderate critical exploit firefox ubuntu xulrunner

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 10.10:
  firefox                         3.6.24+build2+nobinonly-0ubuntu0.10.10.1
  xulrunner-1.9.2                 1.9.2.24+build2+nobinonly-0ubuntu0.10.10.1

Ubuntu 10.04 LTS:
  firefox                         3.6.24+build2+nobinonly-0ubuntu0.10.04.1
  xulrunner-1.9.2                 1.9.2.24+build2+nobinonly-0ubuntu0.10.04.1

After a standard system upgrade you need to restart Firefox and any
applications that use Xulrunner to effect the necessary changes.