CloudLinux 6 kernel version 2.6.32-954.3.5.lve1.4.64 with a fix for MDS vulnerability is now available for download from our updates-testing repository.


  • CKSIX-218: x86 MDS mitigations:
    • CVE-2018-12126 MSBDS Microarchitectural Store Buffer Data Sampling;
    • CVE-2018-12130 MFBDS Microarchitectural Fill Buffer Data Sampling;
    • CVE-2018-12127 MLPDS Microarchitectural Load Port Data Sampling;
    • CVE-2019-11091 MDSUM Microarchitectural Data Sampling Uncacheable Memory.

To update a kernel, please use the following command.

CloudLinux 6:

yum upgrade microcode_ctl && yum install kernel-2.6.32-954.3.5.lve1.4.64.el6 --enablerepo=cloudlinux-updates-testing