Summary
Ubuntu Update for Linux kernel vulnerabilities USN-661-1
Solution
Please Install the Updated Packages.
Insight
Version 2.6.27 of the Linux kernel changed the order of options in TCP headers. While this change was RFC-compliant, it was found that some old routers and consumer DSL modems would not route traffic for these systems when TCP timestamps were enabled. As a workaround, TCP timestamps were disabled via sysctl.
This update restores the previous ordering of TCP options, and reenables TCP timestamps. We apologize for the inconvenience.
Affected
linux regression on Ubuntu 8.10
References
Updated on 2015-03-25
