# CVE-2020-5383: Memory corruption in Isilon OneFS

> A remote unauthenticated attacker can exploit a buffer overflow in the Likewise component to cause a process restart, resulting in denial of service.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Aug 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3w9g-v5jv-vm58

## What is CVE-2020-5383?

CVE-2020-5383 is a medium-severity memory corruption vulnerability in Dell Emc Powerscale Onefs, published on 27 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Dell EMC Isilon OneFS version 8.2.2 and Dell EMC PowerScale OneFS version 9.0.0 contains a buffer overflow vulnerability in the Likewise component. A remote unauthenticated malicious attacker may potentially exploit this vulnerability to cause a process restart.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2020-5383?

It affects 2 products.


Products: Dell Emc Isilon, Dell Emc Powerscale Onefs.

## How do I fix CVE-2020-5383?

No fix has been published for CVE-2020-5383 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-5383 being exploited?

There is no known exploitation of CVE-2020-5383 in the wild and no public exploit code.

## Other vulnerabilities in Dell Emc Powerscale Onefs

- [CVE-2018-1186](https://insights.sbomify.com/CVE-2018-1186/): Cross-site scripting in Isilon OneFS (medium 4.8)
- [CVE-2018-1187](https://insights.sbomify.com/CVE-2018-1187/): Cross-site scripting in Isilon OneFS (medium 4.8)
- [CVE-2018-1188](https://insights.sbomify.com/CVE-2018-1188/): Cross-site scripting in Isilon OneFS (medium 4.8)
- [CVE-2018-1189](https://insights.sbomify.com/CVE-2018-1189/): Cross-site scripting in Isilon OneFS (medium 4.8)
- [CVE-2018-1201](https://insights.sbomify.com/CVE-2018-1201/): Cross-site scripting in Isilon OneFS (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-5383 and fix it if it is affected.

What it is: CVE-2020-5383 is a medium-severity memory corruption vulnerability in Dell Emc Powerscale Onefs, published on 27 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-5383 in the wild and no public exploit code.

Affected product: Dell Emc Powerscale Onefs. 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-2020-5383/ (Markdown: https://insights.sbomify.com/CVE-2020-5383/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-5383
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-5383
- OSV: https://osv.dev/vulnerability/CVE-2020-5383

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-5383/
Summaries are generated and may contain mistakes; the official description above is the record.