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FedoraFEDORA:A90A8203D49B

HistorySep 19, 2024 - 1:59 a.m.

[SECURITY] Fedora 39 Update: microcode_ctl-2.1-58.3.fc39

2024-09-1901:59:16

CVSS3

5.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

6.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/SC:H/VI:N/SI:N/VA:N/SA:N

AI Score

7.2

Confidence

Low

JSON

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
Fedora39anymicrocode_ctl< 2.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Fedora	39	any	microcode_ctl	< 2.1	UNKNOWN

CVSS3

5.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

CVSS4

6.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/SC:H/VI:N/SI:N/VA:N/SA:N

AI Score

7.2

Confidence

Low

JSON

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