Ubuntu Security Notice 3196-1 – It was discovered that PHP incorrectly handled certain arguments to the locale_get_display_name function. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that PHP incorrectly handled certain invalid objects when unserializing data. A remote attacker could use this issue to cause PHP to hang, resulting in a denial of service. Various other issues were also addressed.