Linux · Amazon Linux · Security advisory · February 17, 2023

ALAS2023-2023-055: microcode_ctl security update

ALAS2023-2023-055, released February 17, 2023, fixes 6 CVEs in microcode_ctl (version 2:2.1-53.amzn2023). None of them is reported as exploited. Patch Radar priority: Routine.

Routine
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
5.5
Base score, 0 to 10
Highest EPSS
0.0036
30th percentile

Priority of the 6 CVEs

Patch now 0 Urgent 0 High 0 Routine 6

Fixed package versions

ProductReleaseFixed in
microcode_ctlamzn 20232:2.1-53.amzn2023

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Routine CVE-2022-21151 microcode_ctl: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from t...5.5 0.0036 None reported
Routine CVE-2022-21233 intel-microcode: Improper isolation of shared resources in some Intel(R) Processors mayallow a privileged user to potentially enable i...5.5 0.0033 None reported
Routine CVE-2021-33117 intel-microcode: Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may all...5.5 0.0032 None reported
Routine CVE-2022-21131 microcode_ctl: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2022-21233: A flaw w...n/a 0.0030 None reported
Routine CVE-2022-21136 microcode_ctl: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from t...2.7 0.0027 None reported
Routine CVE-2022-0005 microcode_ctl: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from t...4.9 0.0021 None reported
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