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USN-725-1: KMail vulnerability

26 February 2009

KMail vulnerability

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

It was discovered that Kmail did not adequately prevent execution of arbitrary
code when a user clicked on a URL to an executable within an HTML mail. If a
user clicked on a malicious URL and chose to execute the file, a remote
attacker could execute arbitrary code with user privileges. This update changes
KMail's behavior to instead launch a helper program to view the file if the
user chooses to execute such a link.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 8.10
Ubuntu 8.04
Ubuntu 7.10
Ubuntu 6.06

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