# CVE-2024-33763: Memory corruption in n/a

> A stack-buffer-underflow in lunasvg allows attackers to cause denial of service or potentially execute arbitrary code via crafted SVG files.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 May 2024
- **Updated:** 25 Oct 2024
- **Also known as:** GHSA-cgpr-m9mx-94j6, PYSEC-2024-281

## What is CVE-2024-33763?

CVE-2024-33763 is a high-severity memory corruption vulnerability in n/a, published on 1 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

lunasvg v2.3.9 was discovered to contain a stack-buffer-underflow at lunasvg/source/layoutcontext.cpp.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2024-33763?

1 open source package ship an affected version, including lunasvg. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `lunasvg` | PyPI | All versions to 2.3.9 | None |

Products: Sammycage Lunasvg.

## How do I fix CVE-2024-33763?

No fix has been published for CVE-2024-33763 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-33763 being exploited?

There is no known exploitation of CVE-2024-33763 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-33768](https://insights.sbomify.com/CVE-2024-33768/): Null dereference in n/a (critical 9.8)
- [CVE-2024-57722](https://insights.sbomify.com/CVE-2024-57722/): Denial of service in n/a (high 7.5)
- [CVE-2024-55456](https://insights.sbomify.com/CVE-2024-55456/): Null dereference in n/a (medium 6.5)
- [CVE-2024-57719](https://insights.sbomify.com/CVE-2024-57719/): Null dereference in n/a (medium 6.5)
- [CVE-2024-57720](https://insights.sbomify.com/CVE-2024-57720/): Null dereference in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-33763 and fix it if it is affected.

What it is: CVE-2024-33763 is a high-severity memory corruption vulnerability in n/a, published on 1 May 2024. 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-2024-33763 in the wild and no public exploit code.

Affected packages and fixed versions:
- lunasvg (PyPI): affected all versions up to 2.3.9; no fix listed

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-2024-33763/ (Markdown: https://insights.sbomify.com/CVE-2024-33763/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-33763
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-33763
- OSV: https://osv.dev/vulnerability/CVE-2024-33763

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-33763/
Summaries are generated and may contain mistakes; the official description above is the record.