# CVE-2021-42774: Memory corruption in n/a

> Remote unauthenticated attackers can exploit a buffer overflow in Broadcom HBA Manager to execute arbitrary code if not in Strictly Local Management mode.

- **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:** 12 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-mr9f-f2w7-mmmf

## What is CVE-2021-42774?

CVE-2021-42774 is a critical memory corruption vulnerability in n/a, published on 12 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31, if not installed in Strictly Local Management mode, have a buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.

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

## Which versions are affected by CVE-2021-42774?

It affects 1 product.


Products: Broadcom Emulex Hba Manager.

## How do I fix CVE-2021-42774?

No fix has been published for CVE-2021-42774 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-42774 being exploited?

There is no known exploitation of CVE-2021-42774 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-42772](https://insights.sbomify.com/CVE-2021-42772/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-42775](https://insights.sbomify.com/CVE-2021-42775/): File upload in n/a (critical 9.1)
- [CVE-2021-42773](https://insights.sbomify.com/CVE-2021-42773/): Path traversal in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-42774 and fix it if it is affected.

What it is: CVE-2021-42774 is a critical memory corruption vulnerability in n/a, published on 12 Nov 2021. 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-2021-42774 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-2021-42774/ (Markdown: https://insights.sbomify.com/CVE-2021-42774/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-42774
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-42774
- OSV: https://osv.dev/vulnerability/CVE-2021-42774

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-42774/
Summaries are generated and may contain mistakes; the official description above is the record.