An intel-microcode security update has been released for Debian GNU/Linux 8 LTS. This update ships updated CPU microcode for some types of Intel CPUs.

Package : intel-microcode
Version : 3.20191115.2~deb8u1
CVE ID : CVE-2019-11135 CVE-2019-11139

This update ships updated CPU microcode for some types of Intel CPUs. In
particular it provides mitigations for the TAA (TSX Asynchronous Abort)
vulnerability. For affected CPUs, to fully mitigate the vulnerability it
is also necessary to update the Linux kernel packages as released in
DLA 1989-1.

For Debian 8 "Jessie", these problems have been fixed in version
3.20191115.2~deb8u1.

We recommend that you upgrade your intel-microcode packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS