# CVE-2023-20564: Vulnerability details

> A privileged attacker can exploit insufficient IOCTL validation in AMD Ryzen Master to perform memory reads/writes, potentially leading to arbitrary kernel execution.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Aug 2023
- **Updated:** 8 Oct 2024
- **Also known as:** GHSA-vxhh-8p3q-886v

## What is CVE-2023-20564?

CVE-2023-20564 is a medium-severity memory corruption vulnerability in AMD Ryzen™ Master, published on 15 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insufficient validation in the IOCTL (Input Output Control) input buffer in AMD Ryzen™ Master may permit a privileged attacker to perform memory reads/writes potentially leading to a loss of confidentiality or arbitrary kernel execution.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-20564?

It affects 2 products.


Products: Amd Ryzen Master, Amd Ryzen Master Monitoring Sdk.

## How do I fix CVE-2023-20564?

No fix has been published for CVE-2023-20564 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20564 being exploited?

There is no known exploitation of CVE-2023-20564 in the wild and no public exploit code.

Public exploit code:

- PoC for AMD Ryzen driver.  (github_poc): https://github.com/NtGabrielGomes/CVE-2023-20564

## Other vulnerabilities in AMD Ryzen™ Master

- [CVE-2022-27677](https://insights.sbomify.com/CVE-2022-27677/): Privilege escalation in Ryzen™ Master (high 7.8)
- [CVE-2020-12928](https://insights.sbomify.com/CVE-2020-12928/): Privilege escalation in AMD Ryzen Master (high 7.8)
- [CVE-2023-20560](https://insights.sbomify.com/CVE-2023-20560/): Untitled advisory (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20564 and fix it if it is affected.

What it is: CVE-2023-20564 is a medium-severity memory corruption vulnerability in AMD Ryzen™ Master, published on 15 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-20564 in the wild and no public exploit code.

Affected product: AMD Ryzen™ Master. 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-2023-20564/ (Markdown: https://insights.sbomify.com/CVE-2023-20564/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20564
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20564
- OSV: https://osv.dev/vulnerability/CVE-2023-20564

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-20564/
Summaries are generated and may contain mistakes; the official description above is the record.