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Debian Security Announcement DSA-4701-1: Intel Microcode Update on June 11

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Calendar Grey June 11, 2020
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Countermeasures for different Intel processor vulnerabilities outlined in Debian advisory DSA-4701-1. System upgrade is strongly advised for enhanced security.
This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for the Special Register Buffer Data Sampling (CVE-2020-0543), Vector Register Samplin...

Summary

The microcode update for HEDT and Xeon CPUs with signature 0x50654 which
was reverted in DSA 4565-2 is now included again with a fixed release.

The upstream update for Skylake-U/Y (signature 0x406e3) had to be
excluded from this update due to reported hangs on boot.

For details refer to
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00320.html
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.html

For the oldstable distribution (stretch), these problems have been fixed
in version 3.20200609.2~deb9u1.

For the stable distribution (buster), these problems have been fixed in
version 3.20200609.2~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 at:
https://security-tracker.debian.org/tracker/source-package/intel-microcode

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently ask...

Read the Full Advisory

Severity
critical
Lowest
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Package: intel-microcode
CVE ID: CVE-2020-0543 CVE-2020-0548 CVE-2020-0549

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