# CVE-2018-5272: Denial of service in n/a

> Local users can cause a Blue Screen of Death in Malwarebytes Premium due to improper input validation in the driver, though the vendor could not reproduce the issue.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 8 Jan 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5jcx-8c3m-2pqf

## What is CVE-2018-5272?

CVE-2018-5272 is a high-severity denial of service vulnerability in n/a, published on 8 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In Malwarebytes Premium 3.3.1.2183, the driver file (FARFLT.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9c40e004. NOTE: the vendor reported that they "have not been able to reproduce the issue on any Windows operating system version (32-bit or 64-bit).

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-5272?

It affects 1 product.


Products: Malwarebytes Malwarebytes.

## How do I fix CVE-2018-5272?

No fix has been published for CVE-2018-5272 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-5272 being exploited?

There is no known exploitation of CVE-2018-5272 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-50971](https://insights.sbomify.com/CVE-2022-50971/): Malwarebytes 4.5 Unquoted Service Path Privilege Escalation (high 8.5)
- [CVE-2023-26088](https://insights.sbomify.com/CVE-2023-26088/): Path traversal in n/a (high 7.8)
- [CVE-2018-5270](https://insights.sbomify.com/CVE-2018-5270/): Denial of service in n/a (high 7.8)
- [CVE-2018-5271](https://insights.sbomify.com/CVE-2018-5271/): Denial of service in n/a (high 7.8)
- [CVE-2018-5273](https://insights.sbomify.com/CVE-2018-5273/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-5272 and fix it if it is affected.

What it is: CVE-2018-5272 is a high-severity denial of service vulnerability in n/a, published on 8 Jan 2018. 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-2018-5272 in the wild and no public exploit code.

Affected product: n/a. 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-2018-5272/ (Markdown: https://insights.sbomify.com/CVE-2018-5272/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-5272
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-5272
- OSV: https://osv.dev/vulnerability/CVE-2018-5272

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-5272/
Summaries are generated and may contain mistakes; the official description above is the record.