CVE-2012-6638 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6638): he tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.
CVE-2012-6638 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6638): The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.
This seems to affect "Linux kernel before 3.2.24". Is it still relevant for Gentoo?
There are no longer any 2.x or <3.2.24 kernels available in the repository with the exception of sys-kernel/xbox-sources which is unsupported by security.