Ubuntu Update for linux USN-2049-1

Solution
Please Install the Updated Packages.
Insight
Miroslav Vadkerti discovered a flaw in how the permissions for network sysctls are handled in the Linux kernel. An unprivileged local user could exploit this flaw to have privileged access to files in /proc/sys/net/. (CVE-2013-4270) A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. (CVE-2013-4299) Wannes Rombouts reported a vulnerability in the networking tuntap interface of the Linux kernel. A local user with the CAP_NET_ADMIN capability could leverage this flaw to gain full admin privileges. (CVE-2013-4343) Alan Chester reported a flaw in the IPv6 Stream Control Transmission Protocol (SCTP) of the Linux kernel. A remote attacker could exploit this flaw to obtain sensitive information by sniffing network traffic. (CVE-2013-4350) Dmitry Vyukov reported a flaw in the Linux kernel's handling of IPv6 UDP Fragmentation Offload (UFO) processing. A remote attacker could leverage this flaw to cause a denial of service (system crash). (CVE-2013-4387) Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmenttation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2013-4470)
Affected
linux on Ubuntu 13.10