Ubuntu Security Notice USN-493-1
31st July, 2007
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
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 version:
- 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.