Ubuntu Security Notice 3051-1 - It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after a n error condition occurred. A local attacker could use this to cause a denial of service. Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. Various other issues were also addressed. Continue reading...