Ubuntu 2524-1: eCryptfs vulnerability

    Date10 Mar 2015
    Posted ByLinuxSecurity Advisories
    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
    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
    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.
      libecryptfs0                    83-0ubuntu3.
    After a standard system update you need to log out of all sessions and then log
    back in to make all the necessary changes.
    Package Information:
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