# CVE-2021-44590: Denial of service in n/a

> Remote attackers can cause denial of service in libming by submitting a crafted SWF file that triggers memory exhaustion.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Jan 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-p8pg-r36g-7vjr, UBUNTU-CVE-2021-44590

## What is CVE-2021-44590?

CVE-2021-44590 is a medium-severity denial of service vulnerability in Libming Libming, published on 6 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In libming 0.4.8, a memory exhaustion vulnerability exist in the function cws2fws in util/main.c. Remote attackers could launch denial of service attacks by submitting a crafted SWF file that exploits this vulnerability.

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

## Which versions are affected by CVE-2021-44590?

It affects 1 product.


Products: Libming Libming.

## How do I fix CVE-2021-44590?

No fix has been published for CVE-2021-44590 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-44590 being exploited?

There is no known exploitation of CVE-2021-44590 in the wild and no public exploit code.

## Other vulnerabilities in Libming Libming

- [CVE-2023-50628](https://insights.sbomify.com/CVE-2023-50628/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-11894](https://insights.sbomify.com/CVE-2020-11894/): Memory corruption in n/a (critical 9.1)
- [CVE-2020-11895](https://insights.sbomify.com/CVE-2020-11895/): Memory corruption in n/a (critical 9.1)
- [CVE-2019-16705](https://insights.sbomify.com/CVE-2019-16705/): Information disclosure in n/a (critical 9.1)
- [CVE-2023-36239](https://insights.sbomify.com/CVE-2023-36239/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-44590 and fix it if it is affected.

What it is: CVE-2021-44590 is a medium-severity denial of service vulnerability in Libming Libming, published on 6 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-44590 in the wild and no public exploit code.

Affected product: Libming Libming. 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-2021-44590/ (Markdown: https://insights.sbomify.com/CVE-2021-44590/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44590
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44590
- OSV: https://osv.dev/vulnerability/CVE-2021-44590

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44590/
Summaries are generated and may contain mistakes; the official description above is the record.