QID 355081

Date Published: 2023-05-18

QID 355081: Amazon Linux Security Advisory for microcode_ctl : AL2012-2023-406

Package updates are available for Amazon Linux that fix the following vulnerabilities:
CVE-2022-38090:
A flaw was found in the Linux kernel. A potential security vulnerability in some Intel Processors with Intel Software Guard Extensions (SGX) may allow information disclosure. This flaw may allow a privileged user to enable information disclosure via local access. 2171281: CVE-2022-38090 kernel: Intel firmware update for improper isolation of shared resources CVE-2022-33196:
A flaw was found in the Linux kernel. Some Intel(R) Xeon(R) processors with Intel? Software Guard Extensions (SGX) may allow privilege escalation. This issue may allow a privileged user to enable privilege escalation via local access. 2171252: CVE-2022-33196 kernel: Intel firmware update for Incorrect default permissions in some memory controller configurations CVE-2022-21216:
A flaw was found in the Linux kernel. A potential security vulnerability in some Intel(R) Atom(R) and Intel(R) Xeon(R) Scalable Processors may allow privilege escalation. This flaw may allow a privileged user to enable privilege escalation via adjacent network access. 2171227: CVE-2022-21216 kernel: Intel firmware update for insufficient granularity of access control in out-of-band management in some Intel Atom and Intel Xeon Scalable Processors

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as High - 6.8 severity.

CVSS V2 rated as Medium - 5.4 severity.

Solution

Administrators are advised to apply the appropriate software updates.

Vendor References

CVEs related to QID 355081

CVE-2022-33196 | CVE-2022-38090 | CVE-2022-21216 |

Software Advisories

Advisory ID	Software	Component	Link
AL2012-2023-406	Amazon Linux Bare Metal		docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-updates.html

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