# CVE-2020-11045: Out-of-bounds Read in FreeRDP

> An out-of-bounds read in FreeRDP allows attackers to read client memory, potentially exposing sensitive data displayed as colors.

- **Severity:** Low 2.2 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2020-11045, GHSA-3x39-248q-f4q6, UBUNTU-CVE-2020-11045

## What is CVE-2020-11045?

CVE-2020-11045 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 7 May 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bound read in in update_read_bitmap_data that allows client memory to be read to an image buffer. The result displayed on screen as colour.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-11045?

It affects 3 products.


Products: Canonical Ubuntu Linux, Debian Debian Linux, Freerdp Freerdp.

## How do I fix CVE-2020-11045?

Upgrade to a fixed version.

## Is CVE-2020-11045 being exploited?

There is no known exploitation of CVE-2020-11045 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11045 and fix it if it is affected.

What it is: CVE-2020-11045 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 7 May 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-11045 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-11045/ (Markdown: https://insights.sbomify.com/CVE-2020-11045/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11045
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11045
- OSV: https://osv.dev/vulnerability/CVE-2020-11045

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11045/
Summaries are generated and may contain mistakes; the official description above is the record.