Philip Van Hoof discovered that the IMAP client in Evolution did not correctly verify the SEQUENCE value. A malicious or spoofed server could exploit this to execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following package versions:
21 June 2007
A security issue affects these releases of Ubuntu and its derivatives:
Philip Van Hoof discovered that the IMAP client in Evolution did not correctly verify the SEQUENCE value. A malicious or spoofed server could exploit this to execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to reboot your computer to effect the necessary changes.