# CVE-2024-33255: Denial of service in n/a

> An assertion failure in the JerryScript JavaScript engine allows attackers to cause a denial of service via crafted input.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Apr 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-27vr-24cc-98h4, UBUNTU-CVE-2024-33255

## What is CVE-2024-33255?

CVE-2024-33255 is a medium-severity denial of service vulnerability in Jerryscript Jerryscript, published on 26 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Jerryscript commit cefd391 was discovered to contain an Assertion Failure via ECMA_STRING_IS_REF_EQUALS_TO_ONE (string_p) in ecma_free_string_list.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2024-33255?

It affects 1 product.


Products: Jerryscript Jerryscript.

## How do I fix CVE-2024-33255?

No fix has been published for CVE-2024-33255 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-33255 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-33255 exists.

## Other vulnerabilities in Jerryscript Jerryscript

- [CVE-2023-36109](https://insights.sbomify.com/CVE-2023-36109/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-38961](https://insights.sbomify.com/CVE-2023-38961/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-22597](https://insights.sbomify.com/CVE-2020-22597/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-42863](https://insights.sbomify.com/CVE-2021-42863/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-43453](https://insights.sbomify.com/CVE-2021-43453/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-33255 and fix it if it is affected.

What it is: CVE-2024-33255 is a medium-severity denial of service vulnerability in Jerryscript Jerryscript, published on 26 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-33255 exists.

Affected product: Jerryscript Jerryscript. 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-2024-33255/ (Markdown: https://insights.sbomify.com/CVE-2024-33255/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-33255
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-33255
- OSV: https://osv.dev/vulnerability/CVE-2024-33255

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-33255/
Summaries are generated and may contain mistakes; the official description above is the record.