CVE-2023-43490: Medium severity ubuntu/intel-microcode vulnerability

Published Mar 12, 2024
·
Updated

Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R) SGX may allow a privileged user to potentially enable information disclosure via local access.

Affected Software

6 affected componentsFixes available
ubuntu/intel-microcode<3.20240514.0ubuntu0.18.04.1+
3.20240514.0ubuntu0.18.04.1+
ubuntu/intel-microcode<3.20240514.0ubuntu0.20.04.1
3.20240514.0ubuntu0.20.04.1
ubuntu/intel-microcode<3.20240514.0ubuntu0.22.04.1
3.20240514.0ubuntu0.22.04.1
ubuntu/intel-microcode<3.20240514.0ubuntu0.23.10.1
3.20240514.0ubuntu0.23.10.1
ubuntu/intel-microcode<3.20240514.0ubuntu0.16.04.1+
3.20240514.0ubuntu0.16.04.1+
debian/intel-microcode<=3.20231114.1~deb11u1, <=3.20231114.1~deb12u1
3.20240514.1~deb11u13.20240514.1~deb12u13.20240813.2

Event History

Mar 12, 2024
CVE Published
via Ubuntu·12:00 AM
Mar 14, 2024
CVE Published
via MITRE·04:45 PM
Data Sourced
via MITRE·04:45 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeakness
Mar 21, 2024
Data Sourced
via Red Hat·01:55 PM
DescriptionSeverityAffected Software
May 29, 2024
Data Sourced
via Launchpad·12:47 PM
Description

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2023-43490?

The severity of CVE-2023-43490 is rated as high due to the potential for information disclosure by a privileged user.

2

How do I fix CVE-2023-43490?

To fix CVE-2023-43490, update the Intel microcode to the recommended versions provided by your Linux distribution.

3

What systems are affected by CVE-2023-43490?

CVE-2023-43490 affects some Intel Xeon D Processors that utilize Intel SGX microcode on specific Ubuntu and Debian versions.

4

Can CVE-2023-43490 be exploited remotely?

CVE-2023-43490 requires local access for exploitation, making it a local privilege escalation vulnerability.

5

Is there a workaround for CVE-2023-43490?

There are no known workarounds for CVE-2023-43490; the only mitigation is to apply the necessary microcode updates.

Company

Resources

Contact

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