vGPU software (guest driver) - Linux, vGPU…: Integer Overflow or Wraparound
CVE-2022-42263 is a high-severity integer overflow or wraparound vulnerability in vGPU software (guest driver) - Linux, vGPU software (Virtual GPU Manager), NVIDIA Cloud Gaming (guest driver), NVIDIA Cloud Gaming (Virtual GPU Manager) from NVIDIA, with a CVSS 3.1 base score of 7.1 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 0.26% 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 515.86.01 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, vGPU software (Virtual GPU Manager), NVIDIA Cloud Gaming (guest driver), NVIDIA Cloud Gaming (Virtual GPU Manager) | 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; 515 up to, but not including, 515.86.01; 450 up to, but not including, 450.216.04 | 470.161.03, 510.108.03, 515.86.01, 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
- NoneNothing can be modified.
- 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:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.1 | High | CNA (nvidia.com) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer handler, where an Integer overflow may lead to denial of service or information disclosure.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
How developers prevent this class of flaw
- Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. If possible, choose a language or compiler that performs automatic bounds checking.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Use libraries or frameworks that make it easier to handle numbers without unexpected consequences. Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++).
More Integer Overflow or Wraparound vulnerabilities (CWE-190)
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
Other vulnerabilities in vGPU software (guest driver) - Linux, vGPU software (Virtual GPU Manager), NVIDIA Cloud Gaming (guest driver), NVIDIA Cloud Gaming (Virtual GPU Manager)
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- 7.3 High severity
- 7.3 High severity
- 7.8 High severity
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- 7.8 High severity
Recent Integer Overflow or Wraparound vulnerabilities
- 7.1 High severity
- 8.6 High severity
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- 7.8 High severity
- 7.8 High severity
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