Ubuntu security bulletins (USN-503-1 - Thunderbird)

USN-503-1: Thunderbird Javascript flaws
Threat-level (*): Less-than-moderate

Affected Ubuntu versions:

• Ubuntu 6.06 LTS
• Ubuntu 6.10
• Ubuntu 7.04
• (and the corresponding versions of Kubuntu, Edubuntu, and Xubuntu)

Affected Thunderbird version:

• mozilla-thunderbird 1.5

It's recommended that you perform (at least) a standard upgrade of your system to avoid possible:

• Attacks based on malicious-emails (based on Thunderbird Javascript flaws):
• arbitrary execution of applications placed on the attacked computer with the privileges of the user that opened the malicious mail
• execution of arbitrary code with the privileges of the user
  

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(*) = IMHO = It's just my opinion...