# CVE-2021-37354: Memory corruption in n/a

> A buffer overflow in the TIMEZONE variable allows attackers to cause a Denial of Service on Xerox Phaser printers.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Feb 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vc5p-mcvw-9rxm

## What is CVE-2021-37354?

CVE-2021-37354 is a critical memory corruption vulnerability in n/a, published on 15 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Xerox Phaser 4622 v35.013.01.000 was discovered to contain a buffer overflow in the function sub_3226AC via the TIMEZONE variable. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2021-37354?

It affects 1 product.


Products: Xerox Phaser 4622 Firmware.

## How do I fix CVE-2021-37354?

No fix has been published for CVE-2021-37354 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37354 being exploited?

There is no known exploitation of CVE-2021-37354 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37354 and fix it if it is affected.

What it is: CVE-2021-37354 is a critical memory corruption vulnerability in n/a, published on 15 Feb 2022. 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-2021-37354 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-2021-37354/ (Markdown: https://insights.sbomify.com/CVE-2021-37354/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37354
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37354
- OSV: https://osv.dev/vulnerability/CVE-2021-37354

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37354/
Summaries are generated and may contain mistakes; the official description above is the record.