# CVE-2019-3721: Improper Range Header Processing Vulnerability

> Remote unauthenticated attackers can crash Dell OMSA by sending crafted range headers, causing excessive memory consumption and service unavailability.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Apr 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-v279-g8wh-682w

## What is CVE-2019-3721?

CVE-2019-3721 is a medium-severity denial of service vulnerability in Dell EMC Open Manage System Administrator, published on 25 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Dell EMC Open Manage System Administrator (OMSA) versions prior to 9.3.0 contain an Improper Range Header Processing Vulnerability. A remote unauthenticated attacker may send crafted requests with overlapping ranges to cause the application to compress each of the requested bytes, resulting in a crash due to excessive memory consumption and preventing users from accessing the system.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2019-3721?

It affects 1 product.


Products: Dell Emc Openmanage Server Administrator.

## How do I fix CVE-2019-3721?

No fix has been published for CVE-2019-3721 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3721 being exploited?

There is no known exploitation of CVE-2019-3721 in the wild and no public exploit code.

## Other vulnerabilities in Dell EMC Open Manage System Administrator

- [CVE-2020-5377](https://insights.sbomify.com/CVE-2020-5377/): Path traversal in Dell Open Manage Server Administrator (critical 9.1)
- [CVE-2019-3723](https://insights.sbomify.com/CVE-2019-3723/): Web Parameter Tampering Vulnerability (critical 9.1)
- [CVE-2019-3722](https://insights.sbomify.com/CVE-2019-3722/): XML External Entity (XXE) Injection Vulnerability (high 7.5)
- [CVE-2023-43079](https://insights.sbomify.com/CVE-2023-43079/): Privilege escalation in Dell OpenManage Server Administrator (high 7.3)
- [CVE-2019-3720](https://insights.sbomify.com/CVE-2019-3720/): Directory Traversal Vulnerability (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3721 and fix it if it is affected.

What it is: CVE-2019-3721 is a medium-severity denial of service vulnerability in Dell EMC Open Manage System Administrator, published on 25 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-3721 in the wild and no public exploit code.

Affected product: Dell EMC Open Manage System Administrator. 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-2019-3721/ (Markdown: https://insights.sbomify.com/CVE-2019-3721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3721
- OSV: https://osv.dev/vulnerability/CVE-2019-3721

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-3721/
Summaries are generated and may contain mistakes; the official description above is the record.