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fedoraFedoraFEDORA:9E4E12012DDD
HistoryMay 30, 2023 - 1:08 a.m.

[SECURITY] Fedora 37 Update: microcode_ctl-2.1-53.1.fc37

2023-05-3001:08:07
lists.fedoraproject.org
8

6.8 Medium

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.7 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

8.3%

The microcode_ctl utility is a companion to the microcode driver written by Tigran Aivazian <tigran(a)aivazian.fsnet.co.uk>. The microcode update is volatile and needs to be uploaded on each system boot i.e. it doesn’t reflash your cpu permanently, reboot and it reverts back to the old microcode.

OSVersionArchitecturePackageVersionFilename
Fedora37anymicrocode_ctl< 2.1UNKNOWN

6.8 Medium

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.7 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

8.3%