USN-536-1: Thunderbird vulnerabilities

Ubuntu Security Notice USN-536-1

23rd October, 2007

mozilla-thunderbird, thunderbird vulnerabilities

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

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software description

  • mozilla-thunderbird
  • thunderbird

Details

Various flaws were discovered in the layout and JavaScript engines. By
tricking a user into opening a malicious web page, an attacker could
execute arbitrary code with the user's privileges. (CVE-2007-5339,
CVE-2007-5340)

Flaws were discovered in the file upload form control. By tricking
a user into opening a malicious web page, an attacker could force
arbitrary files from the user's computer to be uploaded without their
consent. (CVE-2006-2894, CVE-2007-3511)

Michal Zalewski discovered that the onUnload event handlers were
incorrectly able to access information outside the old page content. A
malicious web site could exploit this to modify the contents, or
steal confidential data (such as passwords), of the next loaded web
page. (CVE-2007-1095)

Stefano Di Paola discovered that Thunderbird did not correctly request
Digest Authentications. A malicious web site could exploit this to
inject arbitrary HTTP headers or perform session splitting attacks
against proxies. (CVE-2007-2292)

Eli Friedman discovered that XUL could be used to hide a window's
titlebar. A malicious web site could exploit this to enhance their
attempts at creating phishing web sites. (CVE-2007-5334)

Georgi Guninski discovered that Thunderbird would allow file-system based
web pages to access additional files. By tricking a user into opening
a malicious web page from a gnome-vfs location, an attacker could steal
arbitrary files from the user's computer. (CVE-2007-5337)

It was discovered that the XPCNativeWrappers were not safe in
certain situations. By tricking a user into opening a malicious web
page, an attacker could run arbitrary JavaScript with the user's
privileges. (CVE-2007-5338)

Please note that JavaScript is disabled by default for emails, and it
is not recommended to enable it.

Update instructions

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

Ubuntu 7.10:
mozilla-thunderbird 2.0.0.8~pre071022+nobinonly-0ubuntu0.7.10
Ubuntu 7.04:
mozilla-thunderbird 1.5.0.13+1.5.0.14b-0ubuntu0.7.04
Ubuntu 6.10:
mozilla-thunderbird 1.5.0.13+1.5.0.14b-0ubuntu0.6.10
Ubuntu 6.06 LTS:
mozilla-thunderbird 1.5.0.13+1.5.0.14b-0ubuntu0.6.06

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

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

References

CVE-2006-2894, CVE-2007-1095, CVE-2007-2292, CVE-2007-3511, CVE-2007-5334, CVE-2007-5337, CVE-2007-5338, CVE-2007-5339, CVE-2007-5340