# CVE-2021-25701: Denial of service in - PCoIP Software Client

> An attacker can cause a denial of service in the PCoIP Software Client via improper object management in the fUSBHub driver.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Jul 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-h486-xvmm-2jhg

## What is CVE-2021-25701?

CVE-2021-25701 is a medium-severity denial of service vulnerability in - PCoIP Software Client, published on 21 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The fUSBHub driver in the PCoIP Software Client prior to version 21.07.0 had an error in object management during the handling of a variety of IOCTLs, which allowed an attacker to cause a denial of service.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2021-25701?

It affects 1 product.


Products: Teradici Pcoip Client.

## How do I fix CVE-2021-25701?

No fix has been published for CVE-2021-25701 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25701 being exploited?

There is no known exploitation of CVE-2021-25701 in the wild and no public exploit code.

## Other vulnerabilities in - PCoIP Software Client

- [CVE-2021-25699](https://insights.sbomify.com/CVE-2021-25699/): Privilege escalation in - PCoIP Standard Agent - PCoIP Graphics Agent - PCoIP Software Client (high 7.8)
- [CVE-2019-20362](https://insights.sbomify.com/CVE-2019-20362/): Privilege escalation in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25701 and fix it if it is affected.

What it is: CVE-2021-25701 is a medium-severity denial of service vulnerability in - PCoIP Software Client, published on 21 Jul 2021. 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-2021-25701 in the wild and no public exploit code.

Affected product: - PCoIP Software Client. 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-2021-25701/ (Markdown: https://insights.sbomify.com/CVE-2021-25701/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25701
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25701
- OSV: https://osv.dev/vulnerability/CVE-2021-25701

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25701/
Summaries are generated and may contain mistakes; the official description above is the record.