Ubuntu 8.04 LTS / 8.10 / 9.04 : firefox-3.0, xulrunner-1.9 vulnerabilities (USN-779-1)

Ubuntu Security Notice (C) 2009-2016 Canonical, Inc. / NASL script (C) 2009-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Several flaws were discovered in the browser and JavaScript engines of
Firefox. If a user were tricked into viewing a malicious website, a
remote attacker could cause a denial of service or possibly execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2009-1392, CVE-2009-1832, CVE-2009-1833, CVE-2009-1837,
CVE-2009-1838)

Pavel Cvrcek discovered that Firefox would sometimes display certain
invalid Unicode characters as whitespace. An attacker could exploit
this to spoof the location bar, such as in a phishing attack.
(CVE-2009-1834)

Gregory Fleischer, Adam Barth and Collin Jackson discovered that
Firefox would allow access to local files from resources loaded via
the file: protocol. If a user were tricked into downloading then
opening a malicious file, an attacker could steal potentially
sensitive information. (CVE-2009-1835, CVE-2009-1839)

Shuo Chen, Ziqing Mao, Yi-Min Wang, and Ming Zhang discovered that
Firefox did not properly handle error responses when connecting to a
proxy server. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could be exploited to view
sensitive information. (CVE-2009-1836)

Wladimir Palant discovered Firefox did not check content-loading
policies when loading external script files into XUL documents. As a
result, Firefox might load malicious content under certain
circumstances. (CVE-2009-1840)

It was discovered that Firefox could be made to run scripts with
elevated privileges. If a user were tricked into viewing a malicious
website, an attacker could cause a chrome privileged object, such as
the browser sidebar, to run arbitrary code via interactions with the
attacker controlled website. (CVE-2009-1841).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)