USN-469-1: Thunderbird vulnerabilities

Ubuntu Security Notice USN-469-1

6th June, 2007

mozilla-thunderbird vulnerabilities

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

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS


Gaƫtan Leurent showed a weakness in APOP authentication. An attacker
posing as a trusted server could recover portions of the user's
password via multiple authentication attempts. (CVE-2007-1558)

Various flaws were discovered in the layout and JavaScript engines. By
tricking a user into opening a malicious email, an attacker could execute
arbitrary code with the user's privileges. Please note that JavaScript
is disabled by default for emails, and it is not recommended to enable
it. (CVE-2007-2867, CVE-2007-2868)

Update instructions

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

Ubuntu 7.04:
Ubuntu 6.10:
Ubuntu 6.06 LTS:

To update your system, please follow these instructions:

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


CVE-2007-1558, CVE-2007-2867, CVE-2007-2868