Description: info leak in 
References:
 http://www.openwall.com/lists/oss-security/2013/03/14/21
Notes:
Bugs:
upstream: released (3.6) [04d4fbca1017c11381e7d82acea21dd741e748bc]
2.6.32-upstream-stable: N/A "L2TPv3 IP encapsulation support for IPv6 introduced in 3.5"
sid: N/A "L2TPv3 IP encapsulation support for IPv6 introduced in 3.5"
2.6.32-squeeze-security: N/A "L2TPv3 IP encapsulation support for IPv6 introduced in 3.5"
3.2-upstream-stable: N/A "L2TPv3 IP encapsulation support for IPv6 introduced in 3.5"