USN-493-1: Firefox vulnerabilities

Releases

• Ubuntu 7.04
• Ubuntu 6.10
• Ubuntu 6.06

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

• firefox - 1.5.dfsg+1.5.0.13~prepatch070731-0ubuntu1

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

References

• CVE-2007-3844
• CVE-2007-3845

Related notices

• USN-503-1: mozilla-thunderbird