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Mageia 7 & 8: MGASA-2021-0140 Critical Intel Microcode Update

mageia
Calendar Grey March 17, 2021
Dist Mageia Esm H88
The firmware patch MGASA-2021-0140 resolves security concerns, including CVE-2020-8696, pertaining to Intel CPU weaknesses.
This update adds new microcode updates to mitigate CVE-2020-8696 for Intel Skylake server (50654) and Cascade Lake Server (50656 & 50657) processors

Summary

This update adds new microcode updates to mitigate CVE-2020-8696 for Intel Skylake server (50654) and Cascade Lake Server (50656 & 50657) processors. The new microcode update mitigates an issue when using an active JTAG agent like In Target Probe (ITP), Direct Connect Interface (DCI) or a Baseboard Management Controller (BMC) to take the CPU JTAG/TAP out of reset and then returning it to reset.
Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2020-8698).
Improper removal of sensitive information before storage or transfer in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2020-8696).

References

- https://bugs.mageia.org/show_bug.cgi?id=28579

- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381.html

- https://www.cve.org/CVERecord?id=CVE-2020-8696

- https://www.cve.org/CVERecord?id=CVE-2020-8698

Topics%20covered

Topics Covered

security advisory critical update information disclosure Mageia microcode

Resolution

SRPMS

- 8/nonfree/microcode-0.20210216-1.mga8.nonfree

- 7/nonfree/microcode-0.20210216-1.mga7.nonfree

Severity
critical
Lowest
Low
Medium
High
Critical

Publication date: 17 Mar 2021
URL: https://advisories.mageia.org/MGASA-2021-0140.html
Type: security
CVE: CVE-2020-8696, CVE-2020-8698

Topics%20covered

Topics Covered

security advisory critical update information disclosure Mageia microcode

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