USN-536-1: Thunderbird vulnerabilities

23 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

  • thunderbird
  • mozilla-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 versions:

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