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Ubuntu 14.04 LTS USN-2524-1 Moderate: eCryptfs Access Issue

Sensitive information in encrypted home and Private directories could beexposed if an attacker gained access to your files.. =========================================================================Ubuntu Security Notice USN-2524-1 March 11, 2015 ecryptfs-utils vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Sensitive information in encrypted home and Private directories could be exposed if an attacker gained access to your files. Software Description: - ecryptfs-utils: eCryptfs cryptographic filesystem utilities Details: 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. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: ecryptfs-utils 104-0ubuntu1.14.10.3 libecryptfs0 104-0ubuntu1.14.10.3 Ubuntu 14.04 LTS: ecryptfs-utils 104-0ubuntu1.14.04.3 libecryptfs0 104-0ubuntu1.14.04.3 Ubuntu 12.04 LTS: ecryptfs-utils 96-0ubuntu3.4 libecryptfs0 96-0ubuntu3.4 Ubuntu 10.04 LTS: ecryptfs-utils 83-0ubuntu3.2.10.04.6 libecryptfs0 83-0ubuntu3.2.10.04.6 After a standard system update you need to log out of all sessions and then log back in to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-2524-1 CVE-2014-9687 Package Information: https://launchpad.net/ubuntu/+source/ecryptfs-utils/104-0ubuntu1.14.10.3 https://launchpad.net/ubuntu/+source/ecryptfs-utils/104-0ubuntu1.14.04.3 https://launchpad.net/ubuntu/+source/ecryptfs-utils/96-0ubuntu3.4 https://launchpad.net/ubuntu/+source/ecryptfs-utils/83-0ubuntu3.2.10.04.6 . A potential flaw in Ubuntu's eCryptfs could lead to risks where unauthorized users may access encrypted files. Please apply updates to safeguard your data.. ecryptfs Security, Encrypted Directories, Ubuntu Update. . Severity: Important. LinuxSecurity.com Team

Mar 11, 2015 •Important Ubuntu