USN-1236-1: Linux kernel vulnerabilities

It was discovered that the Auerswald usb driver incorrectly handled lengths of the USB string descriptors. A local attacker with physical access could insert a specially crafted USB device and gain root privileges. (CVE-2009-4067) It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addipenable variable was turned on, a remote attacker could send specially crafted traffic to crash the system. (CVE-2011-1573) Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494) Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495) Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)