CVE-2015-1465 on Ubuntu 14.04 LTS (trusty) - medium.
Description:
The IPv4 implementation in the Linux kernel before 3.18.8 does not properly consider the length of the Read-Copy Update (RCU) grace period for redirecting lookups in the absence of caching, which allows remote attackers to cause a denial of service (memory consumption or system crash) via a flood of packets. Marcelo Leitner discovered a flaw in the Linux kernel's routing of packets to too many different dsts/too fast. A remote attacker on the same subnet can exploit this flaw to cause a denial of service (system crash).