CVE-2023-47855: Input Validation

Published May 16, 2024
·
Updated

Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a privileged user to potentially enable escalation of privilege via local access.

Affected Software

9 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
Intel TDX module<1.5.05.46.698
NetApp Hci Compute Node Bios

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·09:16 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 PM
Affected Software
Jun 30, 2024
Data Sourced
via Launchpad·12:52 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-2023-47855?

CVE-2023-47855 is classified as a potential escalation of privilege vulnerability due to improper input validation.

2

How do I fix CVE-2023-47855?

To fix CVE-2023-47855, you should update the Intel microcode to the versions specified as remedies for your respective Ubuntu or Debian operating systems.

3

What software is affected by CVE-2023-47855?

CVE-2023-47855 affects Intel TDX module software prior to version 1.5.05.46.698 and specific versions of the Intel microcode on various distributions.

4

Can a guest user exploit CVE-2023-47855?

CVE-2023-47855 can potentially be exploited by a privileged user with local access, leading to escalated privileges.

5

Is there a specific patch available for CVE-2023-47855?

Yes, specific patches are available in the form of updated Intel microcode packages for vulnerable versions.

Company

Resources

Contact

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