Intel(R) TDX module software: Incomplete Filtering of Special Elements
CVE-2024-39283 is a high-severity incomplete filtering of special elements vulnerability in Intel(R) TDX module software, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected Intel(R) TDX module software versions: before version TDX_1.5.01.00.592. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update tdx_module_software to 1.5.01.00.592 or a later version.
- Update Tdx Module to 1.5.01.00.592 or a later version.
- Read the advisory on intel.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Intel(R) TDX module software | Intel(R) TDX module software | before version TDX_1.5.01.00.592 | Not stated |
| Intel | tdx_module_software | before 1.5.01.00.592 | 1.5.01.00.592 |
| Intel | Tdx Module | before 1.5.01.00.592 | 1.5.01.00.592 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.5 | High | CNA (intel.com) |
| CVSS 3.1 | 6.0 | Medium | CNA (intel.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
Incomplete filtering of special elements in Intel(R) TDX module software before version TDX_1.5.01.00.592 may allow an authenticated user to potentially enable escalation of privilege via local access.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incomplete Filtering of Special Elements
The product receives data from an upstream component, but it does not completely filter special elements before sending it to a downstream component.
More Incomplete Filtering of Special Elements vulnerabilities (CWE-791)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Intel(R) TDX module software
- 7.1 High severity
- 8.2 High severity
Recent Incomplete Filtering of Special Elements vulnerabilities
- 7.4 High severity
- 8.6 High severity
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