vGPU software (guest driver) - Linux, NVIDIA…: Improper Preservation of Permissions
CVE-2022-42260 is a high-severity improper preservation of permissions vulnerability in vGPU software (guest driver) - Linux, NVIDIA Cloud Gaming (guest driver) from NVIDIA, 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. There is no confirmed exploitation so far. EPSS estimates a 0.25% 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 Virtual GPU to 11.11 or 13.6 or 14.4, whichever matches your release line, or a later version.
- Update Cloud Gaming to 525.60.11 or 525.60.12, whichever matches your release line, or a later version.
- Update GPU Display Driver to 470.161.03 or 510.108.03 or 450.216.04, whichever matches your release line, or a later version.
- Read the advisory on nvidia.custhelp.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| NVIDIA | vGPU software (guest driver) - Linux, NVIDIA Cloud Gaming (guest driver) | Not specified in the record | Not stated |
| NVIDIA | Virtual GPU | before 11.11; 12.0 up to, but not including, 13.6; 14.0 up to, but not including, 14.4 | 11.11, 13.6, 14.4 |
| NVIDIA | Cloud Gaming | before 525.60.11; before 525.60.12 | 525.60.11, 525.60.12 |
| NVIDIA | GPU Display Driver | 470 up to, but not including, 470.161.03; 510 up to, but not including, 510.108.03; 450 up to, but not including, 450.216.04 | 470.161.03, 510.108.03, 450.216.04 |
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 3.1 | 7.8 | High | CNA (nvidia.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
NVIDIA vGPU Display Driver for Linux guest contains a vulnerability in a D-Bus configuration file, where an unauthorized user in the guest VM can impact protected D-Bus endpoints, which may lead to code execution, denial of service, escalation of privileges, information disclosure, or data tampering.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Preservation of Permissions
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
More Improper Preservation of Permissions vulnerabilities (CWE-281)
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
Third-party and government advisories
- security.gentoo.org/glsa/202310-02Third Party Advisory
Recent Improper Preservation of Permissions vulnerabilities
- 8.8 High severity
- 7.8 High severity
- 7.8 High severity
- 8.8 High severity
- 7.2 High severity
- 7.8 High severity
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