Ubuntu Security Notice 7105-1 - It was discovered that the NrbfDecoder component in .NET did not properly handle an instance of a type confusion vulnerability. An authenticated attacker could possibly use this issue to gain the privileges of another user and execute arbitrary code. It was discovered that the NrbfDecoder component in .NET did not properly perform input validation. An unauthenticated remote attacker could possibly use this issue to cause a denial of service.