USN-493-1: Firefox vulnerabilities

1 August 2007

firefox vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

Details

A flaw was discovered in handling of “about:blank” windows used by addons. A malicious web site could exploit this to modify the contents, or steal confidential data (such as passwords), of other web pages. (CVE-2007-3844)

Jesper Johansson discovered that spaces and double-quotes were not correctly handled when launching external programs. In rare configurations, after tricking a user into opening a malicious web page, an attacker could execute helpers with arbitrary arguments with the user’s privileges. (CVE-2007-3845)

Update instructions

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

Ubuntu 7.04
firefox - 2.0.0.6+1-0ubuntu1
Ubuntu 6.10
firefox - 2.0.0.6+0dfsg-0ubuntu0.6.10
Ubuntu 6.06 LTS
firefox - 1.5.dfsg+1.5.0.13~prepatch070731-0ubuntu1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart Firefox to effect the necessary changes.

References