FalloutとRIDLを修正する方法は？

intel-microcodeをインストールしましたが、./spectre-meltdown-checker.shを使用すると、次のメッセージが表示されます。

CVE-2018-12127 aka 'RIDL, microarchitectural load port data sampling (MLPDS)'
* Mitigated according to the /sys interface:  NO  (Vulnerable: Clear CPU buffers attempted, no microcode; SMT disabled)
* Kernel supports using MD_CLEAR mitigation:  YES  (found md_clear implementation evidence in kernel image)
* Kernel mitigation is enabled and active:  NO 
* SMT is either mitigated or disabled:  YES 
> STATUS:  VULNERABLE  (Vulnerable: Clear CPU buffers attempted, no microcode; SMT disabled)

どうすれば解決できますか？私は理解できません。

  sudo ./spectre-meltdown-checker.sh | grep 'CPU microcode is'
[sudo] password for user: 
  * CPU microcode is known to cause stability problems:  NO  (model 0x2d family 0x6 stepping 0x7 ucode 0x710 cpuid 0x206d7)
  * CPU microcode is the latest known available version:  NO  (latest version is 0x714 dated 2018/05/08 according to builtin MCExtractor DB v112 - 2019/05/22)
IBPB is considered as a good addition to retpoline for Variant 2 mitigation, but your CPU microcode doesn't support it
> STATUS:  VULNERABLE  (an up-to-date CPU microcode is needed to mitigate this vulnerability)

しかし、これは最新です。

sudo apt install intel-microcode
Reading package lists... Done
Building dependency tree       
Reading state information... Done
intel-microcode is already the newest version (3.20180807a.2~deb9u1).