# CVE-2022-3785: Axiomatic Bento4 Avcinfo SetDataSize heap-based overflow

> A heap-based buffer overflow in Bento4's Avcinfo component allows remote attackers to execute arbitrary code or cause denial of service.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L`)
- **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:** 31 Oct 2022
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-f8x7-cjv7-c4v7, UBUNTU-CVE-2022-3785

## What is CVE-2022-3785?

CVE-2022-3785 is a medium-severity memory corruption vulnerability in Axiosys Bento4, published on 31 Oct 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

A vulnerability, which was classified as critical, has been found in Axiomatic Bento4. Affected by this issue is the function AP4_DataBuffer::SetDataSize of the component Avcinfo. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-212564.

Weakness: CWE-787 (Out-of-bounds Write), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2022-3785?

It affects 1 product.


Products: Axiosys Bento4.

## How do I fix CVE-2022-3785?

No fix has been published for CVE-2022-3785 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-3785 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3785 exists.

## Other vulnerabilities in Axiosys Bento4

- [CVE-2024-31002](https://insights.sbomify.com/CVE-2024-31002/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-14531](https://insights.sbomify.com/CVE-2018-14531/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-14532](https://insights.sbomify.com/CVE-2018-14532/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-13846](https://insights.sbomify.com/CVE-2018-13846/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-31003](https://insights.sbomify.com/CVE-2024-31003/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-3785 and fix it if it is affected.

What it is: CVE-2022-3785 is a medium-severity memory corruption vulnerability in Axiosys Bento4, published on 31 Oct 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3785 exists.

Affected product: Axiosys Bento4. 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-2022-3785/ (Markdown: https://insights.sbomify.com/CVE-2022-3785/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-3785
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-3785
- OSV: https://osv.dev/vulnerability/CVE-2022-3785

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-3785/
Summaries are generated and may contain mistakes; the official description above is the record.