# CVE-2021-1085: Race condition in NVIDIA Virtual GPU Software

> A race condition in the NVIDIA vGPU driver allows attackers to escalate privileges, cause denial of service, and disclose information via shared memory manipulation.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-xhh9-57w6-w8vg

## What is CVE-2021-1085?

CVE-2021-1085 is a high-severity vulnerability in NVIDIA Virtual GPU Software, published on 29 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

NVIDIA vGPU driver contains a vulnerability in the Virtual GPU Manager (vGPU plugin), where there is the potential to write to a shared memory location and manipulate the data after the data has been validated, which may lead to denial of service and escalation of privileges and information disclosure but attacker doesn't have control over what information is obtained. This affects vGPU version 12.x (prior to 12.2), version 11.x (prior to 11.4) and version 8.x (prior to 8.7).

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-1085?

It affects 1 product.


Products: Nvidia Virtual Gpu Manager.

## How do I fix CVE-2021-1085?

No fix has been published for CVE-2021-1085 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1085 being exploited?

There is no known exploitation of CVE-2021-1085 in the wild and no public exploit code.

## Other vulnerabilities in NVIDIA Virtual GPU Software

- [CVE-2021-1080](https://insights.sbomify.com/CVE-2021-1080/): Other in NVIDIA Virtual GPU Software (high 7.8)
- [CVE-2021-1081](https://insights.sbomify.com/CVE-2021-1081/): Other in NVIDIA Virtual GPU Software (high 7.8)
- [CVE-2021-1082](https://insights.sbomify.com/CVE-2021-1082/): Other in NVIDIA Virtual GPU Software (high 7.8)
- [CVE-2021-1083](https://insights.sbomify.com/CVE-2021-1083/): Other in NVIDIA Virtual GPU Software (high 7.8)
- [CVE-2021-1084](https://insights.sbomify.com/CVE-2021-1084/): Other in NVIDIA Virtual GPU Software (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-1085 and fix it if it is affected.

What it is: CVE-2021-1085 is a high-severity vulnerability in NVIDIA Virtual GPU Software, published on 29 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-1085 in the wild and no public exploit code.

Affected product: NVIDIA Virtual GPU Software. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-1085/ (Markdown: https://insights.sbomify.com/CVE-2021-1085/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1085
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1085
- OSV: https://osv.dev/vulnerability/CVE-2021-1085

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-1085/
Summaries are generated and may contain mistakes; the official description above is the record.