Sunday 23rd October 2016

Dirty Cow kernel upgrades, scheduled 2 years ago

Given the severity of the Dirty Cow vulnerability and variants that are and are not effective against different variants of RedHat Enterprise Linux, which we use, all servers are undergoing a proactive kernel upgrade this afternoon. Expect a < 5 minute outage for newer generation servers (v6+) and a 10-15 minute outage for older generation (pre v6) servers. Luna has already been upgraded, so no further action will be taken on Luna.

3:38 PM EDT - maintenance window concluded