# CVE-2021-33945: Memory corruption in n/a

> Attackers can cause a denial of service on RICOH printers via a stack buffer overflow in the wpa_supplicant configuration file.

- **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-gv77-w94g-p6r7

## What is CVE-2021-33945?

CVE-2021-33945 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

RICOH Printer series SP products 320DN, SP 325DNw, SP 320SN, SP 320SFN, SP 325SNw, SP 325SFNw, SP 330SN, Aficio SP 3500SF, SP 221S, SP 220SNw, SP 221SNw, SP 221SF, SP 220SFNw, SP 221SFNw v1.06 were discovered to contain a stack buffer overflow in the file /etc/wpa_supplicant.conf. 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-2021-33945?

It affects 66 products.


Products: Ricoh Aficio Sp 3500sf Firmware, Ricoh M 2700 Firmware, Ricoh M 2701 Firmware, Ricoh M 320 Firmware, Ricoh M 320f Firmware, Ricoh M 320fb Firmware, Ricoh M C2000 Firmware, Ricoh M C250fw Firmware, Ricoh M C250fwb Firmware, Ricoh P 310 Firmware, Ricoh P 311 Firmware, Ricoh P C300w Firmware, Ricoh P C301w Firmware, Ricoh Sp 212nw Firmware, Ricoh Sp 212sfnw Firmware, Ricoh Sp 212sfw Firmware, Ricoh Sp 212snw Firmware, Ricoh Sp 212suw Firmware, Ricoh Sp 212w Firmware, Ricoh Sp 213nw Firmware and 46 more.

## How do I fix CVE-2021-33945?

No fix has been published for CVE-2021-33945 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33945 being exploited?

There is no known exploitation of CVE-2021-33945 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33945 and fix it if it is affected.

What it is: CVE-2021-33945 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-2021-33945 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-2021-33945/ (Markdown: https://insights.sbomify.com/CVE-2021-33945/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33945
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33945
- OSV: https://osv.dev/vulnerability/CVE-2021-33945

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33945/
Summaries are generated and may contain mistakes; the official description above is the record.