Ubuntu Security Notice USN-1226-2

Ubuntu Security Notice 1226-2 – Dan Rosenberg discovered that cifs-utils incorrectly handled changes to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. Jan Lieskovsky discovered that cifs-utils incorrectly filtered certain strings being added to the mtab file. A local attacker could use this issue to corrupt the mtab file, possibly leading to a denial of service. Various other issues were also addressed.

Source: Ubuntu Security Notice USN-1226-2