CVE-2023-46103: Medium severity ubuntu/intel-microcode vulnerability

Published May 16, 2024
·
Updated

Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may allow an authenticated user to potentially enable denial of service via local access.

Affected Software

7 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<3.20240514.0ubuntu0.24.04.1
3.20240514.0ubuntu0.24.04.1
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

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.18.04.1+
  2. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.20.04.1
  3. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.22.04.1
  4. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.23.10.1
  5. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.24.04.1
  6. Upgrade

    Upgrade ubuntu/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.0ubuntu0.16.04.1+
  7. Upgrade

    Upgrade debian/intel-microcode to a version that resolves this vulnerability.

    Fixed in 3.20240514.1~deb11u1Fixed in 3.20240514.1~deb12u1Fixed in 3.20240813.2
  8. Upgrade

    Upgrade Intel processor microcode to a version that resolves this vulnerability.

    Patch microcode-20240514

Event History

May 16, 2024
CVE Published
via Ubuntu·12:00 AM
CVE Published
via MITRE·08:47 PM
Data Sourced
via MITRE·08:47 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeakness
Jun 14, 2024
Data Sourced
via Red Hat·01:18 AM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2023-46103?

CVE-2023-46103 has a medium severity rating, potentially allowing denial of service through a sequence of processor instructions.

2

How do I fix CVE-2023-46103?

To fix CVE-2023-46103, you should update the intel-microcode package to the specific versions indicated for your Ubuntu or Debian distribution.

3

Which processors are affected by CVE-2023-46103?

CVE-2023-46103 affects Intel Core Ultra Processors.

4

Can CVE-2023-46103 be exploited remotely?

No, CVE-2023-46103 requires local access to exploit, as it affects authenticated users.

5

Is there a patch available for CVE-2023-46103?

Yes, patches for CVE-2023-46103 are available in the form of updated intel-microcode packages.

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