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mageiaGentoo FoundationMGASA-2021-0140
HistoryMar 17, 2021 - 9:16 a.m.

Updated microcode package fixes security vulnerabilities

2021-03-1709:16:07
Gentoo Foundation
advisories.mageia.org
16

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.0005 Low

EPSS

Percentile

15.9%

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® 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® Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2020-8696).

OSVersionArchitecturePackageVersionFilename
Mageia7noarchmicrocode< 0.20210216-1microcode-0.20210216-1.mga7.nonfree
Mageia8noarchmicrocode< 0.20210216-1microcode-0.20210216-1.mga8.nonfree

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.0005 Low

EPSS

Percentile

15.9%