# CVE-2021-3438: Memory corruption in Certain HP LaserJet products and Samsung product printers, see Security Bulletin

> A buffer overflow in HP LaserJet and Samsung printer drivers allows attackers to escalate privileges on the affected devices.

- **Severity:** High 7.8 (`CVSS:3.1/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:** 20 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cj2m-cm8v-5rvp

## What is CVE-2021-3438?

CVE-2021-3438 is a high-severity memory corruption vulnerability in Certain HP LaserJet products and Samsung product printers, see Security Bulletin, published on 20 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A potential buffer overflow in the software drivers for certain HP LaserJet products and Samsung product printers could lead to an escalation of privilege.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-3438?

It affects 382 products.


Products: Hp Color Laser 150 4zb94a, Hp Color Laser 150 4zb95a, Hp Color Laser Mfp 170 4zb96a, Hp Color Laser Mfp 170 4zb97a, Hp Color Laser Mfp 170 6hu08a, Hp Color Laser Mfp 170 6hu09a, Hp Laser 100 209u7a, Hp Laser 100 4zb79a, Hp Laser 100 4zb80a, Hp Laser 100 4zb81a, Hp Laser 100 5ue14a, Hp Laser 408 7uq75a, Hp Laser Mfp 130 4zb82a, Hp Laser Mfp 130 4zb83a, Hp Laser Mfp 130 4zb84a, Hp Laser Mfp 130 4zb85a, Hp Laser Mfp 130 4zb86a, Hp Laser Mfp 130 4zb87a, Hp Laser Mfp 130 4zb88a, Hp Laser Mfp 130 4zb89a and 362 more.

## How do I fix CVE-2021-3438?

No fix has been published for CVE-2021-3438 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-3438 being exploited?

There is no known exploitation of CVE-2021-3438 in the wild and no public exploit code.

Public exploit code:

- A potential buffer overflow in the software drivers for certain HP LaserJet products and Samsung product printers could lead to an escalation of privilege. (github_poc): https://github.com/CrackerCat/CVE-2021-3438
- Detection and remediation for CVE-2021-3438 with Powershell (github_poc): https://github.com/TobiasS1402/CVE-2021-3438

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-3438 and fix it if it is affected.

What it is: CVE-2021-3438 is a high-severity memory corruption vulnerability in Certain HP LaserJet products and Samsung product printers, see Security Bulletin, published on 20 May 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-2021-3438 in the wild and no public exploit code.

Affected product: Certain HP LaserJet products and Samsung product printers, see Security Bulletin. 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-2021-3438/ (Markdown: https://insights.sbomify.com/CVE-2021-3438/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-3438
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-3438
- OSV: https://osv.dev/vulnerability/CVE-2021-3438

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-3438/
Summaries are generated and may contain mistakes; the official description above is the record.