Debian Security Advisory intel-microcode

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Debian Security Advisory intel-microcode, updates CPU microcode for some types of Intel CPUs.

Microcode is a computer hardware technique that interposes a layer of organisation between the CPU hardware and the programmer-visible instruction set architecture of the computer.

As such, the microcode is a layer of hardware-level instructions that implement higher-level machine code instructions or internal state machine sequencing in many digital processing elements.

Debian Security Advisory intel-microcode.

Package: intel-microcode
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 DSA 4564-1.

For the oldstable distribution Debian "Stretch", these problems have been fixed in version 3.20191112.1~deb9u1.

For the stable distribution Debian "Buster", these problems have been fixed in version 3.20191112.1~deb10u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its security tracker page.

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