USN-717-1: Firefox and Xulrunner vulnerabilities

Ubuntu Security Notice USN-717-1

10th February, 2009

firefox-3.0, xulrunner-1.9 vulnerabilities

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

  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • firefox-3.0
  • xulrunner-1.9

Details

Several flaws were discovered in the browser engine. These problems could allow
an attacker to crash the browser and possibly execute arbitrary code with user
privileges. (CVE-2009-0352, CVE-2009-0353)

A flaw was discovered in the JavaScript engine. An attacker could bypass the
same-origin policy in Firefox by utilizing a chrome XBL method and execute
arbitrary JavaScript within the context of another website. (CVE-2009-0354)

A flaw was discovered in the browser engine when restoring closed tabs. If a
user were tricked into restoring a tab to a malicious website with form input
controls, an attacker could steal local files on the user's system.
(CVE-2009-0355)

Wladimir Palant discovered that Firefox did not restrict access to cookies in
HTTP response headers. If a user were tricked into opening a malicious web
page, a remote attacker could view sensitive information. (CVE-2009-0357)

Paul Nel discovered that Firefox did not honor certain Cache-Control HTTP
directives. A local attacker could exploit this to view private data in
improperly cached pages of another user. (CVE-2009-0358)

Update instructions

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

Ubuntu 8.10:
firefox-3.0 3.0.6+nobinonly-0ubuntu0.8.10.1
abrowser 3.0.6+nobinonly-0ubuntu0.8.10.1
xulrunner-1.9 1.9.0.6+nobinonly-0ubuntu0.8.10.1
Ubuntu 8.04 LTS:
firefox-3.0 3.0.6+nobinonly-0ubuntu0.8.04.1
xulrunner-1.9 1.9.0.6+nobinonly-0ubuntu0.8.04.1

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

After a standard system upgrade you need to restart Firefox and any
applications that use xulrunner, such as Epiphany, to effect the necessary
changes.

References

CVE-2009-0352, CVE-2009-0353, CVE-2009-0354, CVE-2009-0355, CVE-2009-0357, CVE-2009-0358