# CVE-2021-34387: Privilege escalation in NVIDIA Jetson TX1

> An attacker can exploit TrustZone identity mapping to gain write access to kernel memory, enabling privilege escalation and code execution on NVIDIA Jetson devices.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Jun 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-89wh-w7hc-jhpc

## What is CVE-2021-34387?

CVE-2021-34387 is a medium-severity vulnerability in NVIDIA Jetson TX1, published on 21 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The ARM TrustZone Technology on which Trusty is based on contains a vulnerability in access permission settings where the portion of the DRAM reserved for TrustZone is identity-mapped by TLK with read, write, and execute permissions, which gives write access to kernel code and data that is otherwise mapped read only.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2021-34387?

It affects 1 product.


Products: Nvidia Jetson Linux.

## How do I fix CVE-2021-34387?

No fix has been published for CVE-2021-34387 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34387 being exploited?

There is no known exploitation of CVE-2021-34387 in the wild and no public exploit code.

## Other vulnerabilities in NVIDIA Jetson TX1

- [CVE-2024-0108](https://insights.sbomify.com/CVE-2024-0108/): Memory corruption in NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, Jetson TX2 NX, Jetson TX1, Jetson Nano series (high 8.7)
- [CVE-2026-24148](https://insights.sbomify.com/CVE-2026-24148/): Misconfiguration in Jetson Xavier Series and Jetson Orin Series (high 8.3)
- [CVE-2021-34372](https://insights.sbomify.com/CVE-2021-34372/): Integer overflow in NVIDIA Jetson TX2 series, TX2 NX, AGX Xavier series, Xavier NX (high 8.2)
- [CVE-2022-42269](https://insights.sbomify.com/CVE-2022-42269/): Information disclosure in Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX1, Jetson TX2 series, Jetson TX2 NX (high 7.9)
- [CVE-2021-34373](https://insights.sbomify.com/CVE-2021-34373/): Memory corruption in NVIDIA Jetson TX1 (high 7.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34387 and fix it if it is affected.

What it is: CVE-2021-34387 is a medium-severity vulnerability in NVIDIA Jetson TX1, published on 21 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-34387 in the wild and no public exploit code.

Affected product: NVIDIA Jetson TX1. 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-2021-34387/ (Markdown: https://insights.sbomify.com/CVE-2021-34387/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34387
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34387
- OSV: https://osv.dev/vulnerability/CVE-2021-34387

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-34387/
Summaries are generated and may contain mistakes; the official description above is the record.