On IPv6 Stacks Security
The release of the Core security advisory regarding a remote kernel buffer overflow with OpenBSD’s IPv6 implementation is an indicator of what is expected to come next regarding the security and stability of IPv6 stack implementations.
In my opinion, when (and if) IPv6 will become more widely adopted and exposed we will experience an increase with this type of advisories and consequently with the number of incidents involving stack implementations of IPv6.
As more security researches will have the opportunity to examine and test IPv6 stack implementations questioning their strengths and weaknesses we should expect a number of these advisories with regards to the stability and security of these implementations.
It would take some time until the majority of theses issues will be exposed to the public and fixed, like with any other technology, which is new.