Sensitive information in encrypted home and Private directories could be exposed if an attacker gained access to your files.
Sylvain Pelissier discovered that eCryptfs did not generate a random salt when encrypting the mount passphrase with the login password. An attacker could use this issue to discover the login password used to protect the mount passphrase and gain unintended access to the encrypted files.
11 March 2015
A security issue affects these releases of Ubuntu and its derivatives:
Sensitive information in encrypted home and Private directories could be exposed if an attacker gained access to your files.
Sylvain Pelissier discovered that eCryptfs did not generate a random salt when encrypting the mount passphrase with the login password. An attacker could use this issue to discover the login password used to protect the mount passphrase and gain unintended access to the encrypted files.
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 update you need to log out of all sessions and then log back in to make all the necessary changes.
Vulmon