# CVE-2021-1063: Memory corruption in NVIDIA Virtual GPU Manager

> An unvalidated input offset in NVIDIA vGPU Manager allows attackers to cause buffer overreads, leading to data tampering, information disclosure, or denial of service.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:** 8 Jan 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cvrh-6g95-2jv6

## What is CVE-2021-1063?

CVE-2021-1063 is a high-severity memory corruption vulnerability in NVIDIA Virtual GPU Manager, published on 8 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

NVIDIA vGPU manager contains a vulnerability in the vGPU plugin, in which an input offset is not validated, which may lead to a buffer overread, which in turn may cause tampering of data, information disclosure, or denial of service. This affects vGPU version 8.x (prior to 8.6) and version 11.0 (prior to 11.3).

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2021-1063?

It affects 1 product.


Products: Nvidia Virtual Gpu Manager.

## How do I fix CVE-2021-1063?

No fix has been published for CVE-2021-1063 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1063 being exploited?

There is no known exploitation of CVE-2021-1063 in the wild and no public exploit code.

## Other vulnerabilities in NVIDIA Virtual GPU Manager

- [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-2021-1063 and fix it if it is affected.

What it is: CVE-2021-1063 is a high-severity memory corruption vulnerability in NVIDIA Virtual GPU Manager, published on 8 Jan 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-2021-1063 in the wild and no public exploit code.

Affected product: NVIDIA Virtual GPU Manager. 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-2021-1063/ (Markdown: https://insights.sbomify.com/CVE-2021-1063/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1063
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1063
- OSV: https://osv.dev/vulnerability/CVE-2021-1063

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-1063/
Summaries are generated and may contain mistakes; the official description above is the record.