Complete mitigation of this vulnerability for Power Systems clients involves installing patches to both system firmware and operating systems. The firmware patch provides partial remediation to these vulnerabilities and is a pre-requisite for the OS patch to be effective.
Firmware patches for POWER7+, POWER8, and POWER9 platforms are now available via FixCentral. POWER7 patches will be available beginning February 7.
AIX patches will be available beginning January 26 and will continue to be rolled out through February 12.