A intel-microcode security update has been released for both Debian GNU/Linux 9 and 10 to provide mitigations for the Special Register Buffer Data Sampling (CVE-2020-0543), Vector Register Sampling (CVE-2020-0548) and L1D Eviction Sampling (CVE-2020-0549) hardware vulnerabilities.
DSA 4701-1: intel-microcode security update
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Debian Security Advisory DSA-4701-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
June 11, 2020 https://www.debian.org/security/faq
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Package : intel-microcode
CVE ID : CVE-2020-0543 CVE-2020-0548 CVE-2020-0549
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 Sampling (CVE-2020-0548) and L1D
Eviction Sampling (CVE-2020-0549) hardware vulnerabilities.
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/intel-microcode
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
