Ubuntu 10.10 & 10.04 LTS: USN-1184-1 Moderate: Firefox Memory Issue

ubuntu

August 19, 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:

Gary Kwong, Igor Bukanov, and Bob Clary discovered multiple memory

vulnerabilities in the browser rendering engine. An attacker could use

these to possibly execute arbitrary code with the privileges of the user

invoking Firefox. (CVE-2011-2982)

It was discovered that a vulnerability in event management code could

permit JavaScript to be run in the wrong context. This could potentially

allow a malicious website to run code as another website or with escalated

privileges within the browser. (CVE-2011-2981)

It was discovered that an SVG text manipulation routine contained a

dangling pointer vulnerability. An attacker could potentially use this to

crash Firefox or execute arbitrary code with the privileges of the user

invoking Firefox. (CVE-2011-0084)

It was discove...

Read the Full Advisory

Topics Covered

security advisory update firefox arbitrary code memory issue ubuntu xulrunner

Update Instructions

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

Ubuntu 10.10:
  firefox                         3.6.20+build1+nobinonly-0ubuntu0.10.10.1
  xulrunner-1.9.2                 1.9.2.20+build1+nobinonly-0ubuntu0.10.10.1

Ubuntu 10.04 LTS:
  firefox                         3.6.20+build1+nobinonly-0ubuntu0.10.04.1
  xulrunner-1.9.2                 1.9.2.20+build1+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.