Ubuntu Security Notice 4142-2 - USN-4142-1 fixed a vulnerability in e2fsprogs. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that e2fsprogs incorrectly handled certain ext4 partitions. An attacker could possibly use this issue to execute arbitrary code.
58077128e4e7d0c110cd396acfba6ee32af7450d2c39797e10e14f8f63eabfb0