CVE-2023-47855
Publication date 16 May 2024
Last updated 26 August 2025
Ubuntu priority
Description
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.
From the Ubuntu Security Team
It was discovered that some Intel® Processors TDX module software did not properly validate input. A privileged local attacker could use this information to potentially further escalate their privileges on the system.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | 24.04 LTS noble |
Fixed 3.20240514.0ubuntu0.24.04.1
|
| 22.04 LTS jammy |
Fixed 3.20240514.0ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Fixed 3.20240514.0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 3.20240514.0ubuntu0.18.04.1+esm1
|
|
| 16.04 LTS xenial |
Fixed 3.20240514.0ubuntu0.16.04.1+esm1
|
|
| 14.04 LTS trusty | Ignored trusty doesn't support early microcode loading at runtime |
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Get Ubuntu Pro 30-day free trialSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.0 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-6797-1
- Intel Microcode vulnerabilities
- 29 May 2024